20514909

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1\times {\mathrm{439}}^1$

素因数の和:900

約数の個数: 16

約数和(自身を含む): 28223360

約数和(自身を除く): 7708451

約数列:

[1, 3, 37, 111, 421, 439, 1263, 1317, 15577, 16243, 46731, 48729, 184819, 554457, 6838303, 20514909]

約数ペア:

[(1, 20514909), (3, 6838303), (37, 554457), (111, 184819), (421, 48729), (439, 46731), (1263, 16243), (1317, 15577)]