18963896

素因数分解:

$2^3\times 7^1\times {\mathrm{397}}^1\times {\mathrm{853}}^1$

素因数の和:1263

約数の個数: 32

約数和(自身を含む): 40787040

約数和(自身を除く): 21823144

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 397, 794, 853, 1588, 1706, 2779, 3176, 3412, 5558, 5971, 6824, 11116, 11942, 22232, 23884, 47768, 338641, 677282, 1354564, 2370487, 2709128, 4740974, 9481948, 18963896]

約数ペア:

[(1, 18963896), (2, 9481948), (4, 4740974), (7, 2709128), (8, 2370487), (14, 1354564), (28, 677282), (56, 338641), (397, 47768), (794, 23884), (853, 22232), (1588, 11942), (1706, 11116), (2779, 6824), (3176, 5971), (3412, 5558)]