21068762

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:255

約数の個数: 48

約数和(自身を含む): 38632776

約数和(自身を除く): 17564014

約数列:

[1, 2, 11, 13, 22, 26, 37, 74, 121, 143, 181, 242, 286, 362, 407, 481, 814, 962, 1573, 1991, 2353, 3146, 3982, 4477, 4706, 5291, 6697, 8954, 10582, 13394, 21901, 25883, 43802, 51766, 58201, 73667, 87061, 116402, 147334, 174122, 284713, 569426, 810337, 957671, 1620674, 1915342, 10534381, 21068762]

約数ペア:

[(1, 21068762), (2, 10534381), (11, 1915342), (13, 1620674), (22, 957671), (26, 810337), (37, 569426), (74, 284713), (121, 174122), (143, 147334), (181, 116402), (242, 87061), (286, 73667), (362, 58201), (407, 51766), (481, 43802), (814, 25883), (962, 21901), (1573, 13394), (1991, 10582), (2353, 8954), (3146, 6697), (3982, 5291), (4477, 4706)]