21921327

素因数分解:

$3^3\times {\mathrm{149}}^1\times {\mathrm{5449}}^1$

素因数の和:5607

約数の個数: 16

約数和(自身を含む): 32700000

約数和(自身を除く): 10778673

約数列:

[1, 3, 9, 27, 149, 447, 1341, 4023, 5449, 16347, 49041, 147123, 811901, 2435703, 7307109, 21921327]

約数ペア:

[(1, 21921327), (3, 7307109), (9, 2435703), (27, 811901), (149, 147123), (447, 49041), (1341, 16347), (4023, 5449)]