21912237

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{167}}^1\times {\mathrm{239}}^1$

素因数の和:473

約数の個数: 24

約数和(自身を含む): 32497920

約数和(自身を除く): 10585683

約数列:

[1, 3, 9, 61, 167, 183, 239, 501, 549, 717, 1503, 2151, 10187, 14579, 30561, 39913, 43737, 91683, 119739, 131211, 359217, 2434693, 7304079, 21912237]

約数ペア:

[(1, 21912237), (3, 7304079), (9, 2434693), (61, 359217), (167, 131211), (183, 119739), (239, 91683), (501, 43737), (549, 39913), (717, 30561), (1503, 14579), (2151, 10187)]