21904585

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{5483}}^1$

素因数の和:5552

約数の個数: 16

約数和(自身を含む): 28429056

約数和(自身を除く): 6524471

約数列:

[1, 5, 17, 47, 85, 235, 799, 3995, 5483, 27415, 93211, 257701, 466055, 1288505, 4380917, 21904585]

約数ペア:

[(1, 21904585), (5, 4380917), (17, 1288505), (47, 466055), (85, 257701), (235, 93211), (799, 27415), (3995, 5483)]