18710470

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21023}}^1$

素因数の和:21119

約数の個数: 16

約数和(自身を含む): 34058880

約数和(自身を除く): 15348410

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 21023, 42046, 105115, 210230, 1871047, 3742094, 9355235, 18710470]

約数ペア:

[(1, 18710470), (2, 9355235), (5, 3742094), (10, 1871047), (89, 210230), (178, 105115), (445, 42046), (890, 21023)]