21912415

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{397}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 32094720

約数和(自身を除く): 10182305

約数列:

[1, 5, 7, 19, 35, 83, 95, 133, 397, 415, 581, 665, 1577, 1985, 2779, 2905, 7543, 7885, 11039, 13895, 32951, 37715, 52801, 55195, 164755, 230657, 264005, 626069, 1153285, 3130345, 4382483, 21912415]

約数ペア:

[(1, 21912415), (5, 4382483), (7, 3130345), (19, 1153285), (35, 626069), (83, 264005), (95, 230657), (133, 164755), (397, 55195), (415, 52801), (581, 37715), (665, 32951), (1577, 13895), (1985, 11039), (2779, 7885), (2905, 7543)]