21972208

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{72277}}^1$

素因数の和:72304

約数の個数: 20

約数和(自身を含む): 44812360

約数和(自身を除く): 22840152

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 72277, 144554, 289108, 578216, 1156432, 1373263, 2746526, 5493052, 10986104, 21972208]

約数ペア:

[(1, 21972208), (2, 10986104), (4, 5493052), (8, 2746526), (16, 1373263), (19, 1156432), (38, 578216), (76, 289108), (152, 144554), (304, 72277)]