21523011

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{2731}}^1$

素因数の和:2842

約数の個数: 16

約数和(自身を含む): 29899008

約数和(自身を除く): 8375997

約数列:

[1, 3, 37, 71, 111, 213, 2627, 2731, 7881, 8193, 101047, 193901, 303141, 581703, 7174337, 21523011]

約数ペア:

[(1, 21523011), (3, 7174337), (37, 581703), (71, 303141), (111, 193901), (213, 101047), (2627, 8193), (2731, 7881)]