21564420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{359407}}^1$

素因数の和:359419

約数の個数: 24

約数和(自身を含む): 60380544

約数和(自身を除く): 38816124

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 359407, 718814, 1078221, 1437628, 1797035, 2156442, 3594070, 4312884, 5391105, 7188140, 10782210, 21564420]

約数ペア:

[(1, 21564420), (2, 10782210), (3, 7188140), (4, 5391105), (5, 4312884), (6, 3594070), (10, 2156442), (12, 1797035), (15, 1437628), (20, 1078221), (30, 718814), (60, 359407)]