21311668

素因数分解:

$2^2\times 7^2\times {\mathrm{227}}^1\times {\mathrm{479}}^1$

素因数の和:724

約数の個数: 36

約数和(自身を含む): 43666560

約数和(自身を除く): 22354892

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 227, 454, 479, 908, 958, 1589, 1916, 3178, 3353, 6356, 6706, 11123, 13412, 22246, 23471, 44492, 46942, 93884, 108733, 217466, 434932, 761131, 1522262, 3044524, 5327917, 10655834, 21311668]

約数ペア:

[(1, 21311668), (2, 10655834), (4, 5327917), (7, 3044524), (14, 1522262), (28, 761131), (49, 434932), (98, 217466), (196, 108733), (227, 93884), (454, 46942), (479, 44492), (908, 23471), (958, 22246), (1589, 13412), (1916, 11123), (3178, 6706), (3353, 6356)]