18905679

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{463}}^1$

素因数の和:831

約数の個数: 24

約数和(自身を含む): 29556800

約数和(自身を除く): 10651121

約数列:

[1, 3, 9, 13, 39, 117, 349, 463, 1047, 1389, 3141, 4167, 4537, 6019, 13611, 18057, 40833, 54171, 161587, 484761, 1454283, 2100631, 6301893, 18905679]

約数ペア:

[(1, 18905679), (3, 6301893), (9, 2100631), (13, 1454283), (39, 484761), (117, 161587), (349, 54171), (463, 40833), (1047, 18057), (1389, 13611), (3141, 6019), (4167, 4537)]