20478159

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{967}}^1$

素因数の和:1167

約数の個数: 24

約数和(自身を含む): 32064032

約数和(自身を除く): 11585873

約数列:

[1, 3, 9, 13, 39, 117, 181, 543, 967, 1629, 2353, 2901, 7059, 8703, 12571, 21177, 37713, 113139, 175027, 525081, 1575243, 2275351, 6826053, 20478159]

約数ペア:

[(1, 20478159), (3, 6826053), (9, 2275351), (13, 1575243), (39, 525081), (117, 175027), (181, 113139), (543, 37713), (967, 21177), (1629, 12571), (2353, 8703), (2901, 7059)]