81371178

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{645803}}^1$

素因数の和:645818

約数の個数: 24

約数和(自身を含む): 201490848

約数和(自身を除く): 120119670

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 645803, 1291606, 1937409, 3874818, 4520621, 5812227, 9041242, 11624454, 13561863, 27123726, 40685589, 81371178]

約数ペア:

[(1, 81371178), (2, 40685589), (3, 27123726), (6, 13561863), (7, 11624454), (9, 9041242), (14, 5812227), (18, 4520621), (21, 3874818), (42, 1937409), (63, 1291606), (126, 645803)]