2129129919

素因数分解:

$3^2\times 7^2\times {\mathrm{4827959}}^1$

素因数の和:4827979

約数の個数: 18

約数和(自身を含む): 3577518360

約数和(自身を除く): 1448388441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 4827959, 14483877, 33795713, 43451631, 101387139, 236569991, 304161417, 709709973, 2129129919]

約数ペア:

[(1, 2129129919), (3, 709709973), (7, 304161417), (9, 236569991), (21, 101387139), (49, 43451631), (63, 33795713), (147, 14483877), (441, 4827959)]