21533820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:168

約数の個数: 192

約数和(自身を含む): 77414400

約数和(自身を除く): 55880580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 59, 60, 66, 70, 77, 79, 84, 105, 110, 118, 132, 140, 154, 158, 165, 177, 210, 220, 231, 236, 237, 295, 308, 316, 330, 354, 385, 395, 413, 420, 462, 474, 553, 590, 649, 660, 708, 770, 790, 826, 869, 885, 924, 948, 1106, 1155, 1180, 1185, 1239, 1298, 1540, 1580, 1652, 1659, 1738, 1770, 1947, 2065, 2212, 2310, 2370, 2478, 2596, 2607, 2765, 3245, 3318, 3476, 3540, 3894, 4130, 4345, 4543, 4620, 4661, 4740, 4956, 5214, 5530, 6083, 6195, 6490, 6636, 7788, 8260, 8295, 8690, 9086, 9322, 9735, 10428, 11060, 12166, 12390, 12980, 13035, 13629, 13983, 16590, 17380, 18172, 18249, 18644, 19470, 22715, 23305, 24332, 24780, 26070, 27258, 27966, 30415, 32627, 33180, 36498, 38940, 45430, 46610, 51271, 52140, 54516, 55932, 60830, 65254, 68145, 69915, 72996, 90860, 91245, 93220, 97881, 102542, 121660, 130508, 136290, 139830, 153813, 163135, 182490, 195762, 205084, 256355, 272580, 279660, 307626, 326270, 358897, 364980, 391524, 489405, 512710, 615252, 652540, 717794, 769065, 978810, 1025420, 1076691, 1435588, 1538130, 1794485, 1957620, 2153382, 3076260, 3588970, 4306764, 5383455, 7177940, 10766910, 21533820]

約数ペア:

[(1, 21533820), (2, 10766910), (3, 7177940), (4, 5383455), (5, 4306764), (6, 3588970), (7, 3076260), (10, 2153382), (11, 1957620), (12, 1794485), (14, 1538130), (15, 1435588), (20, 1076691), (21, 1025420), (22, 978810), (28, 769065), (30, 717794), (33, 652540), (35, 615252), (42, 512710), (44, 489405), (55, 391524), (59, 364980), (60, 358897), (66, 326270), (70, 307626), (77, 279660), (79, 272580), (84, 256355), (105, 205084), (110, 195762), (118, 182490), (132, 163135), (140, 153813), (154, 139830), (158, 136290), (165, 130508), (177, 121660), (210, 102542), (220, 97881), (231, 93220), (236, 91245), (237, 90860), (295, 72996), (308, 69915), (316, 68145), (330, 65254), (354, 60830), (385, 55932), (395, 54516), (413, 52140), (420, 51271), (462, 46610), (474, 45430), (553, 38940), (590, 36498), (649, 33180), (660, 32627), (708, 30415), (770, 27966), (790, 27258), (826, 26070), (869, 24780), (885, 24332), (924, 23305), (948, 22715), (1106, 19470), (1155, 18644), (1180, 18249), (1185, 18172), (1239, 17380), (1298, 16590), (1540, 13983), (1580, 13629), (1652, 13035), (1659, 12980), (1738, 12390), (1770, 12166), (1947, 11060), (2065, 10428), (2212, 9735), (2310, 9322), (2370, 9086), (2478, 8690), (2596, 8295), (2607, 8260), (2765, 7788), (3245, 6636), (3318, 6490), (3476, 6195), (3540, 6083), (3894, 5530), (4130, 5214), (4345, 4956), (4543, 4740), (4620, 4661)]