21690436

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^2\times {\mathrm{233}}^1$

素因数の和:328

約数の個数: 36

約数和(自身を含む): 41483988

約数和(自身を除く): 19793552

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 148, 233, 466, 629, 932, 1258, 1369, 2516, 2738, 3961, 5476, 7922, 8621, 15844, 17242, 23273, 34484, 46546, 93092, 146557, 293114, 318977, 586228, 637954, 1275908, 5422609, 10845218, 21690436]

約数ペア:

[(1, 21690436), (2, 10845218), (4, 5422609), (17, 1275908), (34, 637954), (37, 586228), (68, 318977), (74, 293114), (148, 146557), (233, 93092), (466, 46546), (629, 34484), (932, 23273), (1258, 17242), (1369, 15844), (2516, 8621), (2738, 7922), (3961, 5476)]