21340397

素因数分解:

${\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{659}}^1$

素因数の和:772

約数の個数: 16

約数和(自身を含む): 23950080

約数和(自身を除く): 2609683

約数列:

[1, 13, 47, 53, 611, 659, 689, 2491, 8567, 30973, 32383, 34927, 402649, 454051, 1641569, 21340397]

約数ペア:

[(1, 21340397), (13, 1641569), (47, 454051), (53, 402649), (611, 34927), (659, 32383), (689, 30973), (2491, 8567)]