18745358

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{1987}}^1$

素因数の和:2131

約数の個数: 16

約数和(自身を含む): 28985040

約数和(自身を除く): 10239682

約数列:

[1, 2, 53, 89, 106, 178, 1987, 3974, 4717, 9434, 105311, 176843, 210622, 353686, 9372679, 18745358]

約数ペア:

[(1, 18745358), (2, 9372679), (53, 353686), (89, 210622), (106, 176843), (178, 105311), (1987, 9434), (3974, 4717)]