81288697

素因数分解:

$7^2\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{277}}^1$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 97547976

約数和(自身を除く): 16259279

約数列:

[1, 7, 49, 53, 113, 277, 371, 791, 1939, 2597, 5537, 5989, 13573, 14681, 31301, 41923, 102767, 219107, 293461, 719369, 1533749, 1658953, 11612671, 81288697]

約数ペア:

[(1, 81288697), (7, 11612671), (49, 1658953), (53, 1533749), (113, 719369), (277, 293461), (371, 219107), (791, 102767), (1939, 41923), (2597, 31301), (5537, 14681), (5989, 13573)]