21180844

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{4649}}^1$

素因数の和:4737

約数の個数: 24

約数和(自身を含む): 39841200

約数和(自身を除く): 18660356

約数列:

[1, 2, 4, 17, 34, 67, 68, 134, 268, 1139, 2278, 4556, 4649, 9298, 18596, 79033, 158066, 311483, 316132, 622966, 1245932, 5295211, 10590422, 21180844]

約数ペア:

[(1, 21180844), (2, 10590422), (4, 5295211), (17, 1245932), (34, 622966), (67, 316132), (68, 311483), (134, 158066), (268, 79033), (1139, 18596), (2278, 9298), (4556, 4649)]