21682275

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{6151}}^1$

素因数の和:6211

約数の個数: 24

約数和(自身を含む): 36616704

約数和(自身を除く): 14934429

約数列:

[1, 3, 5, 15, 25, 47, 75, 141, 235, 705, 1175, 3525, 6151, 18453, 30755, 92265, 153775, 289097, 461325, 867291, 1445485, 4336455, 7227425, 21682275]

約数ペア:

[(1, 21682275), (3, 7227425), (5, 4336455), (15, 1445485), (25, 867291), (47, 461325), (75, 289097), (141, 153775), (235, 92265), (705, 30755), (1175, 18453), (3525, 6151)]