21909390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{7529}}^1$

素因数の和:7636

約数の個数: 32

約数和(自身を含む): 53131680

約数和(自身を除く): 31222290

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 97, 194, 291, 485, 582, 970, 1455, 2910, 7529, 15058, 22587, 37645, 45174, 75290, 112935, 225870, 730313, 1460626, 2190939, 3651565, 4381878, 7303130, 10954695, 21909390]

約数ペア:

[(1, 21909390), (2, 10954695), (3, 7303130), (5, 4381878), (6, 3651565), (10, 2190939), (15, 1460626), (30, 730313), (97, 225870), (194, 112935), (291, 75290), (485, 45174), (582, 37645), (970, 22587), (1455, 15058), (2910, 7529)]