21559239

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1789}}^1$

素因数の和:1911

約数の個数: 24

約数和(自身を含む): 33881120

約数和(自身を除く): 12321881

約数列:

[1, 3, 9, 13, 39, 103, 117, 309, 927, 1339, 1789, 4017, 5367, 12051, 16101, 23257, 69771, 184267, 209313, 552801, 1658403, 2395471, 7186413, 21559239]

約数ペア:

[(1, 21559239), (3, 7186413), (9, 2395471), (13, 1658403), (39, 552801), (103, 209313), (117, 184267), (309, 69771), (927, 23257), (1339, 16101), (1789, 12051), (4017, 5367)]