21531344

素因数分解:

$2^4\times {\mathrm{281}}^1\times {\mathrm{4789}}^1$

素因数の和:5078

約数の個数: 20

約数和(自身を含む): 41874180

約数和(自身を除く): 20342836

約数列:

[1, 2, 4, 8, 16, 281, 562, 1124, 2248, 4496, 4789, 9578, 19156, 38312, 76624, 1345709, 2691418, 5382836, 10765672, 21531344]

約数ペア:

[(1, 21531344), (2, 10765672), (4, 5382836), (8, 2691418), (16, 1345709), (281, 76624), (562, 38312), (1124, 19156), (2248, 9578), (4496, 4789)]