21660722

素因数分解:

$2^1\times {\mathrm{19}}^3\times {\mathrm{1579}}^1$

素因数の和:1638

約数の個数: 16

約数和(自身を含む): 34317600

約数和(自身を除く): 12656878

約数列:

[1, 2, 19, 38, 361, 722, 1579, 3158, 6859, 13718, 30001, 60002, 570019, 1140038, 10830361, 21660722]

約数ペア:

[(1, 21660722), (2, 10830361), (19, 1140038), (38, 570019), (361, 60002), (722, 30001), (1579, 13718), (3158, 6859)]