18312885

素因数分解:

$3^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{439}}^1$

素因数の和:559

約数の個数: 40

約数和(自身を含む): 33221760

約数和(自身を除く): 14908875

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 103, 135, 309, 405, 439, 515, 927, 1317, 1545, 2195, 2781, 3951, 4635, 6585, 8343, 11853, 13905, 19755, 35559, 41715, 45217, 59265, 135651, 177795, 226085, 406953, 678255, 1220859, 2034765, 3662577, 6104295, 18312885]

約数ペア:

[(1, 18312885), (3, 6104295), (5, 3662577), (9, 2034765), (15, 1220859), (27, 678255), (45, 406953), (81, 226085), (103, 177795), (135, 135651), (309, 59265), (405, 45217), (439, 41715), (515, 35559), (927, 19755), (1317, 13905), (1545, 11853), (2195, 8343), (2781, 6585), (3951, 4635)]