21736990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197609}}^1$

素因数の和:197627

約数の個数: 16

約数和(自身を含む): 42683760

約数和(自身を除く): 20946770

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 197609, 395218, 988045, 1976090, 2173699, 4347398, 10868495, 21736990]

約数ペア:

[(1, 21736990), (2, 10868495), (5, 4347398), (10, 2173699), (11, 1976090), (22, 988045), (55, 395218), (110, 197609)]