21891452

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{3169}}^1$

素因数の和:3341

約数の個数: 24

約数和(自身を含む): 42072240

約数和(自身を除く): 20180788

約数列:

[1, 2, 4, 11, 22, 44, 157, 314, 628, 1727, 3169, 3454, 6338, 6908, 12676, 34859, 69718, 139436, 497533, 995066, 1990132, 5472863, 10945726, 21891452]

約数ペア:

[(1, 21891452), (2, 10945726), (4, 5472863), (11, 1990132), (22, 995066), (44, 497533), (157, 139436), (314, 69718), (628, 34859), (1727, 12676), (3169, 6908), (3454, 6338)]