21000659355

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1193}}^1\times {\mathrm{30091}}^1$

素因数の和:31308

約数の個数: 48

約数和(自身を含む): 39235394016

約数和(自身を除く): 18234734661

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 1193, 3579, 5965, 10737, 15509, 17895, 30091, 46527, 53685, 77545, 90273, 139581, 150455, 232635, 270819, 391183, 451365, 697905, 1173549, 1354095, 1955915, 3520647, 5867745, 17603235, 35898563, 107695689, 179492815, 323087067, 466681319, 538478445, 1400043957, 1615435335, 2333406595, 4200131871, 7000219785, 21000659355]

約数ペア:

[(1, 21000659355), (3, 7000219785), (5, 4200131871), (9, 2333406595), (13, 1615435335), (15, 1400043957), (39, 538478445), (45, 466681319), (65, 323087067), (117, 179492815), (195, 107695689), (585, 35898563), (1193, 17603235), (3579, 5867745), (5965, 3520647), (10737, 1955915), (15509, 1354095), (17895, 1173549), (30091, 697905), (46527, 451365), (53685, 391183), (77545, 270819), (90273, 232635), (139581, 150455)]