21113139

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1733}}^1$

素因数の和:1898

約数の個数: 16

約数和(自身を含む): 29297664

約数和(自身を除く): 8184525

約数列:

[1, 3, 31, 93, 131, 393, 1733, 4061, 5199, 12183, 53723, 161169, 227023, 681069, 7037713, 21113139]

約数ペア:

[(1, 21113139), (3, 7037713), (31, 681069), (93, 227023), (131, 161169), (393, 53723), (1733, 12183), (4061, 5199)]