20406308

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12659}}^1$

素因数の和:12707

約数の個数: 24

約数和(自身を含む): 39701760

約数和(自身を除く): 19295452

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 12659, 25318, 50636, 164567, 329134, 392429, 658268, 784858, 1569716, 5101577, 10203154, 20406308]

約数ペア:

[(1, 20406308), (2, 10203154), (4, 5101577), (13, 1569716), (26, 784858), (31, 658268), (52, 392429), (62, 329134), (124, 164567), (403, 50636), (806, 25318), (1612, 12659)]