19890470

素因数分解:

$2^1\times 5^1\times {\mathrm{557}}^1\times {\mathrm{3571}}^1$

素因数の和:4135

約数の個数: 16

約数和(自身を含む): 35877168

約数和(自身を除く): 15986698

約数列:

[1, 2, 5, 10, 557, 1114, 2785, 3571, 5570, 7142, 17855, 35710, 1989047, 3978094, 9945235, 19890470]

約数ペア:

[(1, 19890470), (2, 9945235), (5, 3978094), (10, 1989047), (557, 35710), (1114, 17855), (2785, 7142), (3571, 5570)]