638992444

素因数分解:

$2^2\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{13697}}^1$

素因数の和:13917

約数の個数: 24

約数和(自身を含む): 1139125680

約数和(自身を除く): 500133236

約数列:

[1, 2, 4, 107, 109, 214, 218, 428, 436, 11663, 13697, 23326, 27394, 46652, 54788, 1465579, 1492973, 2931158, 2985946, 5862316, 5971892, 159748111, 319496222, 638992444]

約数ペア:

[(1, 638992444), (2, 319496222), (4, 159748111), (107, 5971892), (109, 5862316), (214, 2985946), (218, 2931158), (428, 1492973), (436, 1465579), (11663, 54788), (13697, 46652), (23326, 27394)]