21092617

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7477}}^1$

素因数の和:7528

約数の個数: 16

約数和(自身を含む): 26801152

約数和(自身を除く): 5708535

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 7477, 52339, 97201, 231787, 680407, 1622509, 3013231, 21092617]

約数ペア:

[(1, 21092617), (7, 3013231), (13, 1622509), (31, 680407), (91, 231787), (217, 97201), (403, 52339), (2821, 7477)]