21000983927

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{1303}}^1\times {\mathrm{209317}}^1$

素因数の和:210638

約数の個数: 16

約数和(自身を含む): 26203264512

約数和(自身を除く): 5202280585

約数列:

[1, 7, 11, 77, 1303, 9121, 14333, 100331, 209317, 1465219, 2302487, 16117409, 272740051, 1909180357, 3000140561, 21000983927]

約数ペア:

[(1, 21000983927), (7, 3000140561), (11, 1909180357), (77, 272740051), (1303, 16117409), (9121, 2302487), (14333, 1465219), (100331, 209317)]