19834256

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{571}}^1$

素因数の和:759

約数の個数: 40

約数和(自身を含む): 41705664

約数和(自身を除く): 21871408

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 167, 208, 334, 571, 668, 1142, 1336, 2171, 2284, 2672, 4342, 4568, 7423, 8684, 9136, 14846, 17368, 29692, 34736, 59384, 95357, 118768, 190714, 381428, 762856, 1239641, 1525712, 2479282, 4958564, 9917128, 19834256]

約数ペア:

[(1, 19834256), (2, 9917128), (4, 4958564), (8, 2479282), (13, 1525712), (16, 1239641), (26, 762856), (52, 381428), (104, 190714), (167, 118768), (208, 95357), (334, 59384), (571, 34736), (668, 29692), (1142, 17368), (1336, 14846), (2171, 9136), (2284, 8684), (2672, 7423), (4342, 4568)]