20644372

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{19927}}^1$

素因数の和:19975

約数の個数: 24

約数和(自身を含む): 42406784

約数和(自身を除く): 21762412

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 19927, 39854, 79708, 139489, 278978, 557956, 737299, 1474598, 2949196, 5161093, 10322186, 20644372]

約数ペア:

[(1, 20644372), (2, 10322186), (4, 5161093), (7, 2949196), (14, 1474598), (28, 737299), (37, 557956), (74, 278978), (148, 139489), (259, 79708), (518, 39854), (1036, 19927)]