40408239

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{251}}^1\times {\mathrm{521}}^1$

素因数の和:878

約数の個数: 16

約数和(自身を含む): 54722304

約数和(自身を除く): 14314065

約数列:

[1, 3, 103, 251, 309, 521, 753, 1563, 25853, 53663, 77559, 130771, 160989, 392313, 13469413, 40408239]

約数ペア:

[(1, 40408239), (3, 13469413), (103, 392313), (251, 160989), (309, 130771), (521, 77559), (753, 53663), (1563, 25853)]