21605564

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{1103}}^1$

素因数の和:1249

約数の個数: 24

約数和(自身を含む): 38949120

約数和(自身を除く): 17343556

約数列:

[1, 2, 4, 59, 83, 118, 166, 236, 332, 1103, 2206, 4412, 4897, 9794, 19588, 65077, 91549, 130154, 183098, 260308, 366196, 5401391, 10802782, 21605564]

約数ペア:

[(1, 21605564), (2, 10802782), (4, 5401391), (59, 366196), (83, 260308), (118, 183098), (166, 130154), (236, 91549), (332, 65077), (1103, 19588), (2206, 9794), (4412, 4897)]