20217996

素因数分解:

$2^2\times 3^2\times {\mathrm{79}}^1\times {\mathrm{7109}}^1$

素因数の和:7198

約数の個数: 36

約数和(自身を含む): 51760800

約数和(自身を除く): 31542804

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 79, 158, 237, 316, 474, 711, 948, 1422, 2844, 7109, 14218, 21327, 28436, 42654, 63981, 85308, 127962, 255924, 561611, 1123222, 1684833, 2246444, 3369666, 5054499, 6739332, 10108998, 20217996]

約数ペア:

[(1, 20217996), (2, 10108998), (3, 6739332), (4, 5054499), (6, 3369666), (9, 2246444), (12, 1684833), (18, 1123222), (36, 561611), (79, 255924), (158, 127962), (237, 85308), (316, 63981), (474, 42654), (711, 28436), (948, 21327), (1422, 14218), (2844, 7109)]