19866224

素因数分解:

$2^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1993}}^1$

素因数の和:2097

約数の個数: 40

約数和(自身を含む): 44506080

約数和(自身を除く): 24639856

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 89, 112, 178, 356, 623, 712, 1246, 1424, 1993, 2492, 3986, 4984, 7972, 9968, 13951, 15944, 27902, 31888, 55804, 111608, 177377, 223216, 354754, 709508, 1241639, 1419016, 2483278, 2838032, 4966556, 9933112, 19866224]

約数ペア:

[(1, 19866224), (2, 9933112), (4, 4966556), (7, 2838032), (8, 2483278), (14, 1419016), (16, 1241639), (28, 709508), (56, 354754), (89, 223216), (112, 177377), (178, 111608), (356, 55804), (623, 31888), (712, 27902), (1246, 15944), (1424, 13951), (1993, 9968), (2492, 7972), (3986, 4984)]