18739971

素因数分解:

$3^3\times {\mathrm{409}}^1\times {\mathrm{1697}}^1$

素因数の和:2115

約数の個数: 16

約数和(自身を含む): 27847200

約数和(自身を除く): 9107229

約数列:

[1, 3, 9, 27, 409, 1227, 1697, 3681, 5091, 11043, 15273, 45819, 694073, 2082219, 6246657, 18739971]

約数ペア:

[(1, 18739971), (3, 6246657), (9, 2082219), (27, 694073), (409, 45819), (1227, 15273), (1697, 11043), (3681, 5091)]