21267544

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{353}}^1\times {\mathrm{443}}^1$

素因数の和:819

約数の個数: 32

約数和(自身を含む): 42437520

約数和(自身を除く): 21169976

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 353, 443, 706, 886, 1412, 1772, 2824, 3544, 6001, 7531, 12002, 15062, 24004, 30124, 48008, 60248, 156379, 312758, 625516, 1251032, 2658443, 5316886, 10633772, 21267544]

約数ペア:

[(1, 21267544), (2, 10633772), (4, 5316886), (8, 2658443), (17, 1251032), (34, 625516), (68, 312758), (136, 156379), (353, 60248), (443, 48008), (706, 30124), (886, 24004), (1412, 15062), (1772, 12002), (2824, 7531), (3544, 6001)]