19221290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{887}}^1$

素因数の和:1102

約数の個数: 32

約数和(自身を含む): 37977984

約数和(自身を除く): 18756694

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 197, 394, 887, 985, 1774, 1970, 2167, 4334, 4435, 8870, 9757, 10835, 19514, 21670, 48785, 97570, 174739, 349478, 873695, 1747390, 1922129, 3844258, 9610645, 19221290]

約数ペア:

[(1, 19221290), (2, 9610645), (5, 3844258), (10, 1922129), (11, 1747390), (22, 873695), (55, 349478), (110, 174739), (197, 97570), (394, 48785), (887, 21670), (985, 19514), (1774, 10835), (1970, 9757), (2167, 8870), (4334, 4435)]