11816721

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{3539}}^1$

素因数の和:3605

約数の個数: 24

約数和(自身を含む): 19880640

約数和(自身を除く): 8063919

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 3539, 10617, 24773, 31851, 74319, 187567, 222957, 562701, 1312969, 1688103, 3938907, 11816721]

約数ペア:

[(1, 11816721), (3, 3938907), (7, 1688103), (9, 1312969), (21, 562701), (53, 222957), (63, 187567), (159, 74319), (371, 31851), (477, 24773), (1113, 10617), (3339, 3539)]