20992208

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42323}}^1$

素因数の和:42362

約数の個数: 20

約数和(自身を含む): 41985408

約数和(自身を除く): 20993200

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42323, 84646, 169292, 338584, 677168, 1312013, 2624026, 5248052, 10496104, 20992208]

約数ペア:

[(1, 20992208), (2, 10496104), (4, 5248052), (8, 2624026), (16, 1312013), (31, 677168), (62, 338584), (124, 169292), (248, 84646), (496, 42323)]