18420415

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{5347}}^1$

素因数の和:5418

約数の個数: 16

約数和(自身を含む): 24258528

約数和(自身を除く): 5838113

約数列:

[1, 5, 13, 53, 65, 265, 689, 3445, 5347, 26735, 69511, 283391, 347555, 1416955, 3684083, 18420415]

約数ペア:

[(1, 18420415), (5, 3684083), (13, 1416955), (53, 347555), (65, 283391), (265, 69511), (689, 26735), (3445, 5347)]