21796705

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{449}}^1$

素因数の和:553

約数の個数: 32

約数和(自身を含む): 31968000

約数和(自身を除く): 10171295

約数列:

[1, 5, 7, 19, 35, 73, 95, 133, 365, 449, 511, 665, 1387, 2245, 2555, 3143, 6935, 8531, 9709, 15715, 32777, 42655, 48545, 59717, 163885, 229439, 298585, 622763, 1147195, 3113815, 4359341, 21796705]

約数ペア:

[(1, 21796705), (5, 4359341), (7, 3113815), (19, 1147195), (35, 622763), (73, 298585), (95, 229439), (133, 163885), (365, 59717), (449, 48545), (511, 42655), (665, 32777), (1387, 15715), (2245, 9709), (2555, 8531), (3143, 6935)]