17969915

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:203

約数の個数: 32

約数和(自身を含む): 23950080

約数和(自身を除く): 5980165

約数列:

[1, 5, 19, 43, 53, 83, 95, 215, 265, 415, 817, 1007, 1577, 2279, 3569, 4085, 4399, 5035, 7885, 11395, 17845, 21995, 43301, 67811, 83581, 189157, 216505, 339055, 417905, 945785, 3593983, 17969915]

約数ペア:

[(1, 17969915), (5, 3593983), (19, 945785), (43, 417905), (53, 339055), (83, 216505), (95, 189157), (215, 83581), (265, 67811), (415, 43301), (817, 21995), (1007, 17845), (1577, 11395), (2279, 7885), (3569, 5035), (4085, 4399)]