20975144

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{154229}}^1$

素因数の和:154252

約数の個数: 16

約数和(自身を含む): 41642100

約数和(自身を除く): 20666956

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 154229, 308458, 616916, 1233832, 2621893, 5243786, 10487572, 20975144]

約数ペア:

[(1, 20975144), (2, 10487572), (4, 5243786), (8, 2621893), (17, 1233832), (34, 616916), (68, 308458), (136, 154229)]