21148617

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{15031}}^1$

素因数の和:15108

約数の個数: 16

約数和(自身を含む): 32709632

約数和(自身を除く): 11561015

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 15031, 45093, 105217, 315651, 1007077, 3021231, 7049539, 21148617]

約数ペア:

[(1, 21148617), (3, 7049539), (7, 3021231), (21, 1007077), (67, 315651), (201, 105217), (469, 45093), (1407, 15031)]