21373713

素因数分解:

$3^4\times {\mathrm{367}}^1\times {\mathrm{719}}^1$

素因数の和:1098

約数の個数: 20

約数和(自身を含む): 32060160

約数和(自身を除く): 10686447

約数列:

[1, 3, 9, 27, 81, 367, 719, 1101, 2157, 3303, 6471, 9909, 19413, 29727, 58239, 263873, 791619, 2374857, 7124571, 21373713]

約数ペア:

[(1, 21373713), (3, 7124571), (9, 2374857), (27, 791619), (81, 263873), (367, 58239), (719, 29727), (1101, 19413), (2157, 9909), (3303, 6471)]