21913996845

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{159857}}^1$

素因数の和:159934

約数の個数: 64

約数和(自身を含む): 40821338880

約数和(自身を除く): 18907342035

約数列:

[1, 3, 5, 13, 15, 19, 37, 39, 57, 65, 95, 111, 185, 195, 247, 285, 481, 555, 703, 741, 1235, 1443, 2109, 2405, 3515, 3705, 7215, 9139, 10545, 27417, 45695, 137085, 159857, 479571, 799285, 2078141, 2397855, 3037283, 5914709, 6234423, 9111849, 10390705, 15186415, 17744127, 29573545, 31172115, 39484679, 45559245, 76891217, 88720635, 112379471, 118454037, 197423395, 230673651, 337138413, 384456085, 561897355, 592270185, 1153368255, 1460933123, 1685692065, 4382799369, 7304665615, 21913996845]

約数ペア:

[(1, 21913996845), (3, 7304665615), (5, 4382799369), (13, 1685692065), (15, 1460933123), (19, 1153368255), (37, 592270185), (39, 561897355), (57, 384456085), (65, 337138413), (95, 230673651), (111, 197423395), (185, 118454037), (195, 112379471), (247, 88720635), (285, 76891217), (481, 45559245), (555, 39484679), (703, 31172115), (741, 29573545), (1235, 17744127), (1443, 15186415), (2109, 10390705), (2405, 9111849), (3515, 6234423), (3705, 5914709), (7215, 3037283), (9139, 2397855), (10545, 2078141), (27417, 799285), (45695, 479571), (137085, 159857)]