21689750

素因数分解:

$2^1\times 5^3\times {\mathrm{101}}^1\times {\mathrm{859}}^1$

素因数の和:977

約数の個数: 32

約数和(自身を含む): 41052960

約数和(自身を除く): 19363210

約数列:

[1, 2, 5, 10, 25, 50, 101, 125, 202, 250, 505, 859, 1010, 1718, 2525, 4295, 5050, 8590, 12625, 21475, 25250, 42950, 86759, 107375, 173518, 214750, 433795, 867590, 2168975, 4337950, 10844875, 21689750]

約数ペア:

[(1, 21689750), (2, 10844875), (5, 4337950), (10, 2168975), (25, 867590), (50, 433795), (101, 214750), (125, 173518), (202, 107375), (250, 86759), (505, 42950), (859, 25250), (1010, 21475), (1718, 12625), (2525, 8590), (4295, 5050)]