21410340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2683}}^1$

素因数の和:2721

約数の個数: 96

約数和(自身を含む): 72145920

約数和(自身を除く): 50735580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 2683, 3990, 5366, 7980, 8049, 10732, 13415, 16098, 18781, 26830, 32196, 37562, 40245, 50977, 53660, 56343, 75124, 80490, 93905, 101954, 112686, 152931, 160980, 187810, 203908, 225372, 254885, 281715, 305862, 356839, 375620, 509770, 563430, 611724, 713678, 764655, 1019540, 1070517, 1126860, 1427356, 1529310, 1784195, 2141034, 3058620, 3568390, 4282068, 5352585, 7136780, 10705170, 21410340]

約数ペア:

[(1, 21410340), (2, 10705170), (3, 7136780), (4, 5352585), (5, 4282068), (6, 3568390), (7, 3058620), (10, 2141034), (12, 1784195), (14, 1529310), (15, 1427356), (19, 1126860), (20, 1070517), (21, 1019540), (28, 764655), (30, 713678), (35, 611724), (38, 563430), (42, 509770), (57, 375620), (60, 356839), (70, 305862), (76, 281715), (84, 254885), (95, 225372), (105, 203908), (114, 187810), (133, 160980), (140, 152931), (190, 112686), (210, 101954), (228, 93905), (266, 80490), (285, 75124), (380, 56343), (399, 53660), (420, 50977), (532, 40245), (570, 37562), (665, 32196), (798, 26830), (1140, 18781), (1330, 16098), (1596, 13415), (1995, 10732), (2660, 8049), (2683, 7980), (3990, 5366)]