21896656

素因数分解:

$2^4\times {\mathrm{181}}^1\times {\mathrm{7561}}^1$

素因数の和:7750

約数の個数: 20

約数和(自身を含む): 42664804

約数和(自身を除く): 20768148

約数列:

[1, 2, 4, 8, 16, 181, 362, 724, 1448, 2896, 7561, 15122, 30244, 60488, 120976, 1368541, 2737082, 5474164, 10948328, 21896656]

約数ペア:

[(1, 21896656), (2, 10948328), (4, 5474164), (8, 2737082), (16, 1368541), (181, 120976), (362, 60488), (724, 30244), (1448, 15122), (2896, 7561)]