20577939

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 30979584

約数和(自身を除く): 10401645

約数列:

[1, 3, 17, 23, 51, 53, 69, 159, 331, 391, 901, 993, 1173, 1219, 2703, 3657, 5627, 7613, 16881, 17543, 20723, 22839, 52629, 62169, 129421, 298231, 388263, 403489, 894693, 1210467, 6859313, 20577939]

約数ペア:

[(1, 20577939), (3, 6859313), (17, 1210467), (23, 894693), (51, 403489), (53, 388263), (69, 298231), (159, 129421), (331, 62169), (391, 52629), (901, 22839), (993, 20723), (1173, 17543), (1219, 16881), (2703, 7613), (3657, 5627)]