17896921

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1249}}^1$

素因数の和:1368

約数の個数: 16

約数和(自身を含む): 21600000

約数和(自身を除く): 3703079

約数列:

[1, 7, 23, 89, 161, 623, 1249, 2047, 8743, 14329, 28727, 111161, 201089, 778127, 2556703, 17896921]

約数ペア:

[(1, 17896921), (7, 2556703), (23, 778127), (89, 201089), (161, 111161), (623, 28727), (1249, 14329), (2047, 8743)]