39915771

素因数分解:

$3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{10987}}^1$

素因数の和:11170

約数の個数: 16

約数和(自身を含む): 61181184

約数和(自身を除く): 21265413

約数列:

[1, 3, 7, 21, 173, 519, 1211, 3633, 10987, 32961, 76909, 230727, 1900751, 5702253, 13305257, 39915771]

約数ペア:

[(1, 39915771), (3, 13305257), (7, 5702253), (21, 1900751), (173, 230727), (519, 76909), (1211, 32961), (3633, 10987)]