20565854428

素因数分解:

$2^2\times 7^1\times {\mathrm{10243}}^1\times {\mathrm{71707}}^1$

素因数の和:81961

約数の個数: 24

約数和(自身を含む): 41136298112

約数和(自身を除く): 20570443684

約数列:

[1, 2, 4, 7, 14, 28, 10243, 20486, 40972, 71701, 71707, 143402, 143414, 286804, 286828, 501949, 1003898, 2007796, 734494801, 1468989602, 2937979204, 5141463607, 10282927214, 20565854428]

約数ペア:

[(1, 20565854428), (2, 10282927214), (4, 5141463607), (7, 2937979204), (14, 1468989602), (28, 734494801), (10243, 2007796), (20486, 1003898), (40972, 501949), (71701, 286828), (71707, 286804), (143402, 143414)]