21700126

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1249}}^1$

素因数の和:1348

約数の個数: 32

約数和(自身を含む): 39960000

約数和(自身を除く): 18259874

約数列:

[1, 2, 7, 14, 17, 34, 73, 119, 146, 238, 511, 1022, 1241, 1249, 2482, 2498, 8687, 8743, 17374, 17486, 21233, 42466, 91177, 148631, 182354, 297262, 638239, 1276478, 1550009, 3100018, 10850063, 21700126]

約数ペア:

[(1, 21700126), (2, 10850063), (7, 3100018), (14, 1550009), (17, 1276478), (34, 638239), (73, 297262), (119, 182354), (146, 148631), (238, 91177), (511, 42466), (1022, 21233), (1241, 17486), (1249, 17374), (2482, 8743), (2498, 8687)]