20171956

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{19471}}^1$

素因数の和:19519

約数の個数: 24

約数和(自身を含む): 41436416

約数和(自身を除く): 21264460

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 19471, 38942, 77884, 136297, 272594, 545188, 720427, 1440854, 2881708, 5042989, 10085978, 20171956]

約数ペア:

[(1, 20171956), (2, 10085978), (4, 5042989), (7, 2881708), (14, 1440854), (28, 720427), (37, 545188), (74, 272594), (148, 136297), (259, 77884), (518, 38942), (1036, 19471)]