71955569

素因数分解:

$7^4\times {\mathrm{23}}^1\times {\mathrm{1303}}^1$

素因数の和:1354

約数の個数: 20

約数和(自身を含む): 87660096

約数和(自身を除く): 15704527

約数列:

[1, 7, 23, 49, 161, 343, 1127, 1303, 2401, 7889, 9121, 29969, 55223, 63847, 209783, 446929, 1468481, 3128503, 10279367, 71955569]

約数ペア:

[(1, 71955569), (7, 10279367), (23, 3128503), (49, 1468481), (161, 446929), (343, 209783), (1127, 63847), (1303, 55223), (2401, 29969), (7889, 9121)]