20847365

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{313}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 31470336

約数和(自身を除く): 10622971

約数列:

[1, 5, 7, 11, 35, 55, 77, 173, 313, 385, 865, 1211, 1565, 1903, 2191, 3443, 6055, 9515, 10955, 13321, 17215, 24101, 54149, 66605, 120505, 270745, 379043, 595639, 1895215, 2978195, 4169473, 20847365]

約数ペア:

[(1, 20847365), (5, 4169473), (7, 2978195), (11, 1895215), (35, 595639), (55, 379043), (77, 270745), (173, 120505), (313, 66605), (385, 54149), (865, 24101), (1211, 17215), (1565, 13321), (1903, 10955), (2191, 9515), (3443, 6055)]