21031089

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1\times {\mathrm{379}}^1$

素因数の和:784

約数の個数: 16

約数和(自身を含む): 28728000

約数和(自身を除く): 7696911

約数列:

[1, 3, 53, 159, 349, 379, 1047, 1137, 18497, 20087, 55491, 60261, 132271, 396813, 7010363, 21031089]

約数ペア:

[(1, 21031089), (3, 7010363), (53, 396813), (159, 132271), (349, 60261), (379, 55491), (1047, 20087), (1137, 18497)]