20618612

素因数分解:

$2^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{1783}}^1$

素因数の和:1860

約数の個数: 36

約数和(自身を含む): 42708960

約数和(自身を除く): 22090348

約数列:

[1, 2, 4, 7, 14, 28, 49, 59, 98, 118, 196, 236, 413, 826, 1652, 1783, 2891, 3566, 5782, 7132, 11564, 12481, 24962, 49924, 87367, 105197, 174734, 210394, 349468, 420788, 736379, 1472758, 2945516, 5154653, 10309306, 20618612]

約数ペア:

[(1, 20618612), (2, 10309306), (4, 5154653), (7, 2945516), (14, 1472758), (28, 736379), (49, 420788), (59, 349468), (98, 210394), (118, 174734), (196, 105197), (236, 87367), (413, 49924), (826, 24962), (1652, 12481), (1783, 11564), (2891, 7132), (3566, 5782)]