16691521

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{907}}^1$

素因数の和:1164

約数の個数: 16

約数和(自身を含む): 20920320

約数和(自身を除く): 4228799

約数列:

[1, 7, 11, 77, 239, 907, 1673, 2629, 6349, 9977, 18403, 69839, 216773, 1517411, 2384503, 16691521]

約数ペア:

[(1, 16691521), (7, 2384503), (11, 1517411), (77, 216773), (239, 69839), (907, 18403), (1673, 9977), (2629, 6349)]