21059235

素因数分解:

$3^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{977}}^1$

素因数の和:1467

約数の個数: 24

約数和(自身を含む): 36616320

約数和(自身を除く): 15557085

約数列:

[1, 3, 5, 9, 15, 45, 479, 977, 1437, 2395, 2931, 4311, 4885, 7185, 8793, 14655, 21555, 43965, 467983, 1403949, 2339915, 4211847, 7019745, 21059235]

約数ペア:

[(1, 21059235), (3, 7019745), (5, 4211847), (9, 2339915), (15, 1403949), (45, 467983), (479, 43965), (977, 21555), (1437, 14655), (2395, 8793), (2931, 7185), (4311, 4885)]