81404449

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{12907}}^1$

素因数の和:12984

約数の個数: 16

約数和(自身を含む): 100372608

約数和(自身を除く): 18968159

約数列:

[1, 7, 17, 53, 119, 371, 901, 6307, 12907, 90349, 219419, 684071, 1535933, 4788497, 11629207, 81404449]

約数ペア:

[(1, 81404449), (7, 11629207), (17, 4788497), (53, 1535933), (119, 684071), (371, 219419), (901, 90349), (6307, 12907)]