19801544

素因数分解:

$2^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{3433}}^1$

素因数の和:3549

約数の個数: 32

約数和(自身を含む): 42856320

約数和(自身を除く): 23054776

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 103, 206, 412, 721, 824, 1442, 2884, 3433, 5768, 6866, 13732, 24031, 27464, 48062, 96124, 192248, 353599, 707198, 1414396, 2475193, 2828792, 4950386, 9900772, 19801544]

約数ペア:

[(1, 19801544), (2, 9900772), (4, 4950386), (7, 2828792), (8, 2475193), (14, 1414396), (28, 707198), (56, 353599), (103, 192248), (206, 96124), (412, 48062), (721, 27464), (824, 24031), (1442, 13732), (2884, 6866), (3433, 5768)]