21963280

素因数分解:

$2^4\times 5^1\times {\mathrm{293}}^1\times {\mathrm{937}}^1$

素因数の和:1243

約数の個数: 40

約数和(自身を含む): 51293592

約数和(自身を除く): 29330312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 293, 586, 937, 1172, 1465, 1874, 2344, 2930, 3748, 4685, 4688, 5860, 7496, 9370, 11720, 14992, 18740, 23440, 37480, 74960, 274541, 549082, 1098164, 1372705, 2196328, 2745410, 4392656, 5490820, 10981640, 21963280]

約数ペア:

[(1, 21963280), (2, 10981640), (4, 5490820), (5, 4392656), (8, 2745410), (10, 2196328), (16, 1372705), (20, 1098164), (40, 549082), (80, 274541), (293, 74960), (586, 37480), (937, 23440), (1172, 18740), (1465, 14992), (1874, 11720), (2344, 9370), (2930, 7496), (3748, 5860), (4685, 4688)]