19242741

素因数分解:

$3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{1657}}^1$

素因数の和:1753

約数の個数: 24

約数和(自身を含む): 30241920

約数和(自身を除く): 10999179

約数列:

[1, 3, 7, 21, 49, 79, 147, 237, 553, 1657, 1659, 3871, 4971, 11599, 11613, 34797, 81193, 130903, 243579, 392709, 916321, 2748963, 6414247, 19242741]

約数ペア:

[(1, 19242741), (3, 6414247), (7, 2748963), (21, 916321), (49, 392709), (79, 243579), (147, 130903), (237, 81193), (553, 34797), (1657, 11613), (1659, 11599), (3871, 4971)]