11721980

素因数分解:

$2^2\times 5^1\times {\mathrm{367}}^1\times {\mathrm{1597}}^1$

素因数の和:1973

約数の個数: 24

約数和(自身を含む): 24698688

約数和(自身を除く): 12976708

約数列:

[1, 2, 4, 5, 10, 20, 367, 734, 1468, 1597, 1835, 3194, 3670, 6388, 7340, 7985, 15970, 31940, 586099, 1172198, 2344396, 2930495, 5860990, 11721980]

約数ペア:

[(1, 11721980), (2, 5860990), (4, 2930495), (5, 2344396), (10, 1172198), (20, 586099), (367, 31940), (734, 15970), (1468, 7985), (1597, 7340), (1835, 6388), (3194, 3670)]