28011699

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{821}}^1$

素因数の和:1067

約数の個数: 24

約数和(自身を含む): 43085952

約数和(自身を除く): 15074253

約数列:

[1, 3, 9, 17, 51, 153, 223, 669, 821, 2007, 2463, 3791, 7389, 11373, 13957, 34119, 41871, 125613, 183083, 549249, 1647747, 3112411, 9337233, 28011699]

約数ペア:

[(1, 28011699), (3, 9337233), (9, 3112411), (17, 1647747), (51, 549249), (153, 183083), (223, 125613), (669, 41871), (821, 34119), (2007, 13957), (2463, 11373), (3791, 7389)]