21556952

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{158507}}^1$

素因数の和:158530

約数の個数: 16

約数和(自身を含む): 42797160

約数和(自身を除く): 21240208

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 158507, 317014, 634028, 1268056, 2694619, 5389238, 10778476, 21556952]

約数ペア:

[(1, 21556952), (2, 10778476), (4, 5389238), (8, 2694619), (17, 1268056), (34, 634028), (68, 317014), (136, 158507)]