20781607686

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3257}}^1\times {\mathrm{3533}}^1$

素因数の和:6845

約数の個数: 64

約数和(自身を含む): 48634172928

約数和(自身を除く): 27852565242

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 86, 129, 258, 301, 602, 903, 1806, 3257, 3533, 6514, 7066, 9771, 10599, 19542, 21198, 22799, 24731, 45598, 49462, 68397, 74193, 136794, 140051, 148386, 151919, 280102, 303838, 420153, 455757, 840306, 911514, 980357, 1063433, 1960714, 2126866, 2941071, 3190299, 5882142, 6380598, 11506981, 23013962, 34520943, 69041886, 80548867, 161097734, 241646601, 483293202, 494800183, 989600366, 1484400549, 2968801098, 3463601281, 6927202562, 10390803843, 20781607686]

約数ペア:

[(1, 20781607686), (2, 10390803843), (3, 6927202562), (6, 3463601281), (7, 2968801098), (14, 1484400549), (21, 989600366), (42, 494800183), (43, 483293202), (86, 241646601), (129, 161097734), (258, 80548867), (301, 69041886), (602, 34520943), (903, 23013962), (1806, 11506981), (3257, 6380598), (3533, 5882142), (6514, 3190299), (7066, 2941071), (9771, 2126866), (10599, 1960714), (19542, 1063433), (21198, 980357), (22799, 911514), (24731, 840306), (45598, 455757), (49462, 420153), (68397, 303838), (74193, 280102), (136794, 151919), (140051, 148386)]