20121963654

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{257973893}}^1$

素因数の和:257973911

約数の個数: 16

約数和(自身を含む): 43339614192

約数和(自身を除く): 23217650538

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 257973893, 515947786, 773921679, 1547843358, 3353660609, 6707321218, 10060981827, 20121963654]

約数ペア:

[(1, 20121963654), (2, 10060981827), (3, 6707321218), (6, 3353660609), (13, 1547843358), (26, 773921679), (39, 515947786), (78, 257973893)]