20339605

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28447}}^1$

素因数の和:28476

約数の個数: 16

約数和(自身を含む): 28675584

約数和(自身を除く): 8335979

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 28447, 142235, 312917, 369811, 1564585, 1849055, 4067921, 20339605]

約数ペア:

[(1, 20339605), (5, 4067921), (11, 1849055), (13, 1564585), (55, 369811), (65, 312917), (143, 142235), (715, 28447)]