20753678

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{191}}^1\times {\mathrm{449}}^1$

素因数の和:664

約数の個数: 24

約数和(自身を含む): 34473600

約数和(自身を除く): 13719922

約数列:

[1, 2, 11, 22, 121, 191, 242, 382, 449, 898, 2101, 4202, 4939, 9878, 23111, 46222, 54329, 85759, 108658, 171518, 943349, 1886698, 10376839, 20753678]

約数ペア:

[(1, 20753678), (2, 10376839), (11, 1886698), (22, 943349), (121, 171518), (191, 108658), (242, 85759), (382, 54329), (449, 46222), (898, 23111), (2101, 9878), (4202, 4939)]