17778969

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{11689}}^1$

素因数の和:11721

約数の個数: 18

約数和(自身を含む): 27810510

約数和(自身を除く): 10031541

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 11689, 35067, 105201, 151957, 455871, 1367613, 1975441, 5926323, 17778969]

約数ペア:

[(1, 17778969), (3, 5926323), (9, 1975441), (13, 1367613), (39, 455871), (117, 151957), (169, 105201), (507, 35067), (1521, 11689)]