19806525

素因数分解:

$3^4\times 5^2\times {\mathrm{9781}}^1$

素因数の和:9803

約数の個数: 30

約数和(自身を含む): 36692282

約数和(自身を除く): 16885757

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 9781, 29343, 48905, 88029, 146715, 244525, 264087, 440145, 733575, 792261, 1320435, 2200725, 3961305, 6602175, 19806525]

約数ペア:

[(1, 19806525), (3, 6602175), (5, 3961305), (9, 2200725), (15, 1320435), (25, 792261), (27, 733575), (45, 440145), (75, 264087), (81, 244525), (135, 146715), (225, 88029), (405, 48905), (675, 29343), (2025, 9781)]