18485518

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{2143}}^1$

素因数の和:2391

約数の個数: 16

約数和(自身を含む): 29329920

約数和(自身を除く): 10844402

約数列:

[1, 2, 19, 38, 227, 454, 2143, 4286, 4313, 8626, 40717, 81434, 486461, 972922, 9242759, 18485518]

約数ペア:

[(1, 18485518), (2, 9242759), (19, 972922), (38, 486461), (227, 81434), (454, 40717), (2143, 8626), (4286, 4313)]