18919238

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{23473}}^1$

素因数の和:23519

約数の個数: 16

約数和(自身を含む): 31549056

約数和(自身を除く): 12629818

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 23473, 46946, 305149, 610298, 727663, 1455326, 9459619, 18919238]

約数ペア:

[(1, 18919238), (2, 9459619), (13, 1455326), (26, 727663), (31, 610298), (62, 305149), (403, 46946), (806, 23473)]