19955175

素因数分解:

$3^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{2441}}^1$

素因数の和:2563

約数の個数: 24

約数和(自身を含む): 33308880

約数和(自身を除く): 13353705

約数列:

[1, 3, 5, 15, 25, 75, 109, 327, 545, 1635, 2441, 2725, 7323, 8175, 12205, 36615, 61025, 183075, 266069, 798207, 1330345, 3991035, 6651725, 19955175]

約数ペア:

[(1, 19955175), (3, 6651725), (5, 3991035), (15, 1330345), (25, 798207), (75, 266069), (109, 183075), (327, 61025), (545, 36615), (1635, 12205), (2441, 8175), (2725, 7323)]