20438836

素因数分解:

$2^2\times {\mathrm{11}}^4\times {\mathrm{349}}^1$

素因数の和:397

約数の個数: 30

約数和(自身を含む): 39457250

約数和(自身を除く): 19018414

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 349, 484, 698, 1331, 1396, 2662, 3839, 5324, 7678, 14641, 15356, 29282, 42229, 58564, 84458, 168916, 464519, 929038, 1858076, 5109709, 10219418, 20438836]

約数ペア:

[(1, 20438836), (2, 10219418), (4, 5109709), (11, 1858076), (22, 929038), (44, 464519), (121, 168916), (242, 84458), (349, 58564), (484, 42229), (698, 29282), (1331, 15356), (1396, 14641), (2662, 7678), (3839, 5324)]