21851090

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{809}}^1$

素因数の和:926

約数の個数: 32

約数和(自身を含む): 40998960

約数和(自身を除く): 19147870

約数列:

[1, 2, 5, 10, 37, 73, 74, 146, 185, 365, 370, 730, 809, 1618, 2701, 4045, 5402, 8090, 13505, 27010, 29933, 59057, 59866, 118114, 149665, 295285, 299330, 590570, 2185109, 4370218, 10925545, 21851090]

約数ペア:

[(1, 21851090), (2, 10925545), (5, 4370218), (10, 2185109), (37, 590570), (73, 299330), (74, 295285), (146, 149665), (185, 118114), (365, 59866), (370, 59057), (730, 29933), (809, 27010), (1618, 13505), (2701, 8090), (4045, 5402)]