20441475

素因数分解:

$3^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{1933}}^1$

素因数の和:1996

約数の個数: 36

約数和(自身を含む): 37411296

約数和(自身を除く): 16969821

約数列:

[1, 3, 5, 9, 15, 25, 45, 47, 75, 141, 225, 235, 423, 705, 1175, 1933, 2115, 3525, 5799, 9665, 10575, 17397, 28995, 48325, 86985, 90851, 144975, 272553, 434925, 454255, 817659, 1362765, 2271275, 4088295, 6813825, 20441475]

約数ペア:

[(1, 20441475), (3, 6813825), (5, 4088295), (9, 2271275), (15, 1362765), (25, 817659), (45, 454255), (47, 434925), (75, 272553), (141, 144975), (225, 90851), (235, 86985), (423, 48325), (705, 28995), (1175, 17397), (1933, 10575), (2115, 9665), (3525, 5799)]