21492016

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{509}}^1$

素因数の和:566

約数の個数: 80

約数和(自身を含む): 53121600

約数和(自身を除く): 31629584

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 29, 52, 56, 58, 91, 104, 112, 116, 182, 203, 208, 232, 364, 377, 406, 464, 509, 728, 754, 812, 1018, 1456, 1508, 1624, 2036, 2639, 3016, 3248, 3563, 4072, 5278, 6032, 6617, 7126, 8144, 10556, 13234, 14252, 14761, 21112, 26468, 28504, 29522, 42224, 46319, 52936, 57008, 59044, 92638, 103327, 105872, 118088, 185276, 191893, 206654, 236176, 370552, 383786, 413308, 741104, 767572, 826616, 1343251, 1535144, 1653232, 2686502, 3070288, 5373004, 10746008, 21492016]

約数ペア:

[(1, 21492016), (2, 10746008), (4, 5373004), (7, 3070288), (8, 2686502), (13, 1653232), (14, 1535144), (16, 1343251), (26, 826616), (28, 767572), (29, 741104), (52, 413308), (56, 383786), (58, 370552), (91, 236176), (104, 206654), (112, 191893), (116, 185276), (182, 118088), (203, 105872), (208, 103327), (232, 92638), (364, 59044), (377, 57008), (406, 52936), (464, 46319), (509, 42224), (728, 29522), (754, 28504), (812, 26468), (1018, 21112), (1456, 14761), (1508, 14252), (1624, 13234), (2036, 10556), (2639, 8144), (3016, 7126), (3248, 6617), (3563, 6032), (4072, 5278)]