81627028

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{47791}}^1$

素因数の和:47863

約数の個数: 24

約数和(自身を含む): 165933824

約数和(自身を除く): 84306796

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 47791, 95582, 191164, 334537, 669074, 1338148, 2915251, 5830502, 11661004, 20406757, 40813514, 81627028]

約数ペア:

[(1, 81627028), (2, 40813514), (4, 20406757), (7, 11661004), (14, 5830502), (28, 2915251), (61, 1338148), (122, 669074), (244, 334537), (427, 191164), (854, 95582), (1708, 47791)]