21299708

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{5309}}^1$

素因数の和:5389

約数の個数: 24

約数和(自身を含む): 40143600

約数和(自身を除く): 18843892

約数列:

[1, 2, 4, 17, 34, 59, 68, 118, 236, 1003, 2006, 4012, 5309, 10618, 21236, 90253, 180506, 313231, 361012, 626462, 1252924, 5324927, 10649854, 21299708]

約数ペア:

[(1, 21299708), (2, 10649854), (4, 5324927), (17, 1252924), (34, 626462), (59, 361012), (68, 313231), (118, 180506), (236, 90253), (1003, 21236), (2006, 10618), (4012, 5309)]