21214172

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20477}}^1$

素因数の和:20525

約数の個数: 24

約数和(自身を含む): 43577184

約数和(自身を除く): 22363012

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 20477, 40954, 81908, 143339, 286678, 573356, 757649, 1515298, 3030596, 5303543, 10607086, 21214172]

約数ペア:

[(1, 21214172), (2, 10607086), (4, 5303543), (7, 3030596), (14, 1515298), (28, 757649), (37, 573356), (74, 286678), (148, 143339), (259, 81908), (518, 40954), (1036, 20477)]