21816112

素因数分解:

$2^4\times {\mathrm{491}}^1\times {\mathrm{2777}}^1$

素因数の和:3276

約数の個数: 20

約数和(自身を含む): 42370056

約数和(自身を除く): 20553944

約数列:

[1, 2, 4, 8, 16, 491, 982, 1964, 2777, 3928, 5554, 7856, 11108, 22216, 44432, 1363507, 2727014, 5454028, 10908056, 21816112]

約数ペア:

[(1, 21816112), (2, 10908056), (4, 5454028), (8, 2727014), (16, 1363507), (491, 44432), (982, 22216), (1964, 11108), (2777, 7856), (3928, 5554)]