21161035

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 30707712

約数和(自身を除く): 9546677

約数列:

[1, 5, 7, 23, 35, 97, 115, 161, 271, 485, 679, 805, 1355, 1897, 2231, 3395, 6233, 9485, 11155, 15617, 26287, 31165, 43631, 78085, 131435, 184009, 218155, 604601, 920045, 3023005, 4232207, 21161035]

約数ペア:

[(1, 21161035), (5, 4232207), (7, 3023005), (23, 920045), (35, 604601), (97, 218155), (115, 184009), (161, 131435), (271, 78085), (485, 43631), (679, 31165), (805, 26287), (1355, 15617), (1897, 11155), (2231, 9485), (3395, 6233)]