19888624

素因数分解:

$2^4\times 7^1\times {\mathrm{239}}^1\times {\mathrm{743}}^1$

素因数の和:997

約数の個数: 40

約数和(自身を含む): 44282880

約数和(自身を除く): 24394256

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 239, 478, 743, 956, 1486, 1673, 1912, 2972, 3346, 3824, 5201, 5944, 6692, 10402, 11888, 13384, 20804, 26768, 41608, 83216, 177577, 355154, 710308, 1243039, 1420616, 2486078, 2841232, 4972156, 9944312, 19888624]

約数ペア:

[(1, 19888624), (2, 9944312), (4, 4972156), (7, 2841232), (8, 2486078), (14, 1420616), (16, 1243039), (28, 710308), (56, 355154), (112, 177577), (239, 83216), (478, 41608), (743, 26768), (956, 20804), (1486, 13384), (1673, 11888), (1912, 10402), (2972, 6692), (3346, 5944), (3824, 5201)]