156789009

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{16963}}^1$

素因数の和:17061

約数の個数: 24

約数和(自身を含む): 246995840

約数和(自身を除く): 90206831

約数列:

[1, 3, 9, 13, 39, 79, 117, 237, 711, 1027, 3081, 9243, 16963, 50889, 152667, 220519, 661557, 1340077, 1984671, 4020231, 12060693, 17421001, 52263003, 156789009]

約数ペア:

[(1, 156789009), (3, 52263003), (9, 17421001), (13, 12060693), (39, 4020231), (79, 1984671), (117, 1340077), (237, 661557), (711, 220519), (1027, 152667), (3081, 50889), (9243, 16963)]