18581715

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 34394880

約数和(自身を除く): 15813165

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 103, 171, 211, 285, 309, 515, 633, 855, 927, 1055, 1545, 1899, 1957, 3165, 4009, 4635, 5871, 9495, 9785, 12027, 17613, 20045, 21733, 29355, 36081, 60135, 65199, 88065, 108665, 180405, 195597, 325995, 412927, 977985, 1238781, 2064635, 3716343, 6193905, 18581715]

約数ペア:

[(1, 18581715), (3, 6193905), (5, 3716343), (9, 2064635), (15, 1238781), (19, 977985), (45, 412927), (57, 325995), (95, 195597), (103, 180405), (171, 108665), (211, 88065), (285, 65199), (309, 60135), (515, 36081), (633, 29355), (855, 21733), (927, 20045), (1055, 17613), (1545, 12027), (1899, 9785), (1957, 9495), (3165, 5871), (4009, 4635)]