18990044

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{13151}}^1$

素因数の和:13193

約数の個数: 18

約数和(自身を含む): 35076384

約数和(自身を除く): 16086340

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 13151, 26302, 52604, 249869, 499738, 999476, 4747511, 9495022, 18990044]

約数ペア:

[(1, 18990044), (2, 9495022), (4, 4747511), (19, 999476), (38, 499738), (76, 249869), (361, 52604), (722, 26302), (1444, 13151)]