18978770

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{35809}}^1$

素因数の和:35869

約数の個数: 16

約数和(自身を含む): 34807320

約数和(自身を除く): 15828550

約数列:

[1, 2, 5, 10, 53, 106, 265, 530, 35809, 71618, 179045, 358090, 1897877, 3795754, 9489385, 18978770]

約数ペア:

[(1, 18978770), (2, 9489385), (5, 3795754), (10, 1897877), (53, 358090), (106, 179045), (265, 71618), (530, 35809)]