21091379435

素因数分解:

$5^1\times 7^2\times {\mathrm{269}}^1\times {\mathrm{320027}}^1$

素因数の和:320315

約数の個数: 24

約数和(自身を含む): 29551385520

約数和(自身を除く): 8460006085

約数列:

[1, 5, 7, 35, 49, 245, 269, 1345, 1883, 9415, 13181, 65905, 320027, 1600135, 2240189, 11200945, 15681323, 78406615, 86087263, 430436315, 602610841, 3013054205, 4218275887, 21091379435]

約数ペア:

[(1, 21091379435), (5, 4218275887), (7, 3013054205), (35, 602610841), (49, 430436315), (245, 86087263), (269, 78406615), (1345, 15681323), (1883, 11200945), (9415, 2240189), (13181, 1600135), (65905, 320027)]