21000304801

素因数分解:

$7^2\times {\mathrm{619}}^1\times {\mathrm{692371}}^1$

素因数の和:693004

約数の個数: 12

約数和(自身を含む): 24468426480

約数和(自身を除く): 3468121679

約数列:

[1, 7, 49, 619, 4333, 30331, 692371, 4846597, 33926179, 428577649, 3000043543, 21000304801]

約数ペア:

[(1, 21000304801), (7, 3000043543), (49, 428577649), (619, 33926179), (4333, 4846597), (30331, 692371)]