28390401

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{563}}^1$

素因数の和:1013

約数の個数: 24

約数和(自身を含む): 44343936

約数和(自身を除く): 15953535

約数列:

[1, 3, 9, 13, 39, 117, 431, 563, 1293, 1689, 3879, 5067, 5603, 7319, 16809, 21957, 50427, 65871, 242653, 727959, 2183877, 3154489, 9463467, 28390401]

約数ペア:

[(1, 28390401), (3, 9463467), (9, 3154489), (13, 2183877), (39, 727959), (117, 242653), (431, 65871), (563, 50427), (1293, 21957), (1689, 16809), (3879, 7319), (5067, 5603)]