420198189

素因数分解:

$3^1\times {\mathrm{47}}^2\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:649

約数の個数: 24

約数和(自身を含む): 577430880

約数和(自身を除く): 157232691

約数列:

[1, 3, 47, 141, 163, 389, 489, 1167, 2209, 6627, 7661, 18283, 22983, 54849, 63407, 190221, 360067, 859301, 1080201, 2577903, 2980129, 8940387, 140066063, 420198189]

約数ペア:

[(1, 420198189), (3, 140066063), (47, 8940387), (141, 2980129), (163, 2577903), (389, 1080201), (489, 859301), (1167, 360067), (2209, 190221), (6627, 63407), (7661, 54849), (18283, 22983)]