21086250

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{5623}}^1$

素因数の和:5648

約数の個数: 40

約数和(自身を含む): 52708128

約数和(自身を除く): 31621878

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 125, 150, 250, 375, 625, 750, 1250, 1875, 3750, 5623, 11246, 16869, 28115, 33738, 56230, 84345, 140575, 168690, 281150, 421725, 702875, 843450, 1405750, 2108625, 3514375, 4217250, 7028750, 10543125, 21086250]

約数ペア:

[(1, 21086250), (2, 10543125), (3, 7028750), (5, 4217250), (6, 3514375), (10, 2108625), (15, 1405750), (25, 843450), (30, 702875), (50, 421725), (75, 281150), (125, 168690), (150, 140575), (250, 84345), (375, 56230), (625, 33738), (750, 28115), (1250, 16869), (1875, 11246), (3750, 5623)]