21386229

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{457}}^1\times {\mathrm{821}}^1$

素因数の和:1300

約数の個数: 16

約数和(自身を含む): 30118080

約数和(自身を除く): 8731851

約数列:

[1, 3, 19, 57, 457, 821, 1371, 2463, 8683, 15599, 26049, 46797, 375197, 1125591, 7128743, 21386229]

約数ペア:

[(1, 21386229), (3, 7128743), (19, 1125591), (57, 375197), (457, 46797), (821, 26049), (1371, 15599), (2463, 8683)]