21307440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1153}}^1$

素因数の和:1187

約数の個数: 160

約数和(自身を含む): 82423296

約数和(自身を除く): 61115856

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 48, 55, 56, 60, 66, 70, 77, 80, 84, 88, 105, 110, 112, 120, 132, 140, 154, 165, 168, 176, 210, 220, 231, 240, 264, 280, 308, 330, 336, 385, 420, 440, 462, 528, 560, 616, 660, 770, 840, 880, 924, 1153, 1155, 1232, 1320, 1540, 1680, 1848, 2306, 2310, 2640, 3080, 3459, 3696, 4612, 4620, 5765, 6160, 6918, 8071, 9224, 9240, 11530, 12683, 13836, 16142, 17295, 18448, 18480, 23060, 24213, 25366, 27672, 32284, 34590, 38049, 40355, 46120, 48426, 50732, 55344, 63415, 64568, 69180, 76098, 80710, 88781, 92240, 96852, 101464, 121065, 126830, 129136, 138360, 152196, 161420, 177562, 190245, 193704, 202928, 242130, 253660, 266343, 276720, 304392, 322840, 355124, 380490, 387408, 443905, 484260, 507320, 532686, 608784, 645680, 710248, 760980, 887810, 968520, 1014640, 1065372, 1331715, 1420496, 1521960, 1775620, 1937040, 2130744, 2663430, 3043920, 3551240, 4261488, 5326860, 7102480, 10653720, 21307440]

約数ペア:

[(1, 21307440), (2, 10653720), (3, 7102480), (4, 5326860), (5, 4261488), (6, 3551240), (7, 3043920), (8, 2663430), (10, 2130744), (11, 1937040), (12, 1775620), (14, 1521960), (15, 1420496), (16, 1331715), (20, 1065372), (21, 1014640), (22, 968520), (24, 887810), (28, 760980), (30, 710248), (33, 645680), (35, 608784), (40, 532686), (42, 507320), (44, 484260), (48, 443905), (55, 387408), (56, 380490), (60, 355124), (66, 322840), (70, 304392), (77, 276720), (80, 266343), (84, 253660), (88, 242130), (105, 202928), (110, 193704), (112, 190245), (120, 177562), (132, 161420), (140, 152196), (154, 138360), (165, 129136), (168, 126830), (176, 121065), (210, 101464), (220, 96852), (231, 92240), (240, 88781), (264, 80710), (280, 76098), (308, 69180), (330, 64568), (336, 63415), (385, 55344), (420, 50732), (440, 48426), (462, 46120), (528, 40355), (560, 38049), (616, 34590), (660, 32284), (770, 27672), (840, 25366), (880, 24213), (924, 23060), (1153, 18480), (1155, 18448), (1232, 17295), (1320, 16142), (1540, 13836), (1680, 12683), (1848, 11530), (2306, 9240), (2310, 9224), (2640, 8071), (3080, 6918), (3459, 6160), (3696, 5765), (4612, 4620)]