21549904

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{8263}}^1$

素因数の和:8434

約数の個数: 20

約数和(自身を含む): 42014176

約数和(自身を除く): 20464272

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 8263, 16526, 33052, 66104, 132208, 1346869, 2693738, 5387476, 10774952, 21549904]

約数ペア:

[(1, 21549904), (2, 10774952), (4, 5387476), (8, 2693738), (16, 1346869), (163, 132208), (326, 66104), (652, 33052), (1304, 16526), (2608, 8263)]