21998162

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:290

約数の個数: 32

約数和(自身を含む): 36115200

約数和(自身を除く): 14117038

約数列:

[1, 2, 19, 38, 47, 94, 109, 113, 218, 226, 893, 1786, 2071, 2147, 4142, 4294, 5123, 5311, 10246, 10622, 12317, 24634, 97337, 100909, 194674, 201818, 234023, 468046, 578899, 1157798, 10999081, 21998162]

約数ペア:

[(1, 21998162), (2, 10999081), (19, 1157798), (38, 578899), (47, 468046), (94, 234023), (109, 201818), (113, 194674), (218, 100909), (226, 97337), (893, 24634), (1786, 12317), (2071, 10622), (2147, 10246), (4142, 5311), (4294, 5123)]