20169261

素因数分解:

$3^2\times 7^1\times {\mathrm{389}}^1\times {\mathrm{823}}^1$

素因数の和:1225

約数の個数: 24

約数和(自身を含む): 33421440

約数和(自身を除く): 13252179

約数列:

[1, 3, 7, 9, 21, 63, 389, 823, 1167, 2469, 2723, 3501, 5761, 7407, 8169, 17283, 24507, 51849, 320147, 960441, 2241029, 2881323, 6723087, 20169261]

約数ペア:

[(1, 20169261), (3, 6723087), (7, 2881323), (9, 2241029), (21, 960441), (63, 320147), (389, 51849), (823, 24507), (1167, 17283), (2469, 8169), (2723, 7407), (3501, 5761)]