19994572

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{13259}}^1$

素因数の和:13305

約数の個数: 24

約数和(自身を含む): 38984400

約数和(自身を除く): 18989828

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 116, 377, 754, 1508, 13259, 26518, 53036, 172367, 344734, 384511, 689468, 769022, 1538044, 4998643, 9997286, 19994572]

約数ペア:

[(1, 19994572), (2, 9997286), (4, 4998643), (13, 1538044), (26, 769022), (29, 689468), (52, 384511), (58, 344734), (116, 172367), (377, 53036), (754, 26518), (1508, 13259)]