20408975991

素因数分解:

$3^2\times {\mathrm{83}}^1\times {\mathrm{113}}^1\times {\mathrm{241781}}^1$

素因数の和:241983

約数の個数: 24

約数和(自身を含む): 30098957616

約数和(自身を除く): 9689981625

約数列:

[1, 3, 9, 83, 113, 249, 339, 747, 1017, 9379, 28137, 84411, 241781, 725343, 2176029, 20067823, 27321253, 60203469, 81963759, 180610407, 245891277, 2267663999, 6802991997, 20408975991]

約数ペア:

[(1, 20408975991), (3, 6802991997), (9, 2267663999), (83, 245891277), (113, 180610407), (249, 81963759), (339, 60203469), (747, 27321253), (1017, 20067823), (9379, 2176029), (28137, 725343), (84411, 241781)]