21219420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{353657}}^1$

素因数の和:353669

約数の個数: 24

約数和(自身を含む): 59414544

約数和(自身を除く): 38195124

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 353657, 707314, 1060971, 1414628, 1768285, 2121942, 3536570, 4243884, 5304855, 7073140, 10609710, 21219420]

約数ペア:

[(1, 21219420), (2, 10609710), (3, 7073140), (4, 5304855), (5, 4243884), (6, 3536570), (10, 2121942), (12, 1768285), (15, 1414628), (20, 1060971), (30, 707314), (60, 353657)]