20739218

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{677}}^1$

素因数の和:766

約数の個数: 24

約数和(自身を含む): 33719652

約数和(自身を除く): 12980434

約数列:

[1, 2, 17, 34, 53, 106, 289, 578, 677, 901, 1354, 1802, 11509, 15317, 23018, 30634, 35881, 71762, 195653, 391306, 609977, 1219954, 10369609, 20739218]

約数ペア:

[(1, 20739218), (2, 10369609), (17, 1219954), (34, 609977), (53, 391306), (106, 195653), (289, 71762), (578, 35881), (677, 30634), (901, 23018), (1354, 15317), (1802, 11509)]