21025100

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{3967}}^1$

素因数の和:4034

約数の個数: 36

約数和(自身を含む): 46497024

約数和(自身を除く): 25471924

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 212, 265, 530, 1060, 1325, 2650, 3967, 5300, 7934, 15868, 19835, 39670, 79340, 99175, 198350, 210251, 396700, 420502, 841004, 1051255, 2102510, 4205020, 5256275, 10512550, 21025100]

約数ペア:

[(1, 21025100), (2, 10512550), (4, 5256275), (5, 4205020), (10, 2102510), (20, 1051255), (25, 841004), (50, 420502), (53, 396700), (100, 210251), (106, 198350), (212, 99175), (265, 79340), (530, 39670), (1060, 19835), (1325, 15868), (2650, 7934), (3967, 5300)]