21417949

素因数分解:

$7^3\times {\mathrm{41}}^1\times {\mathrm{1523}}^1$

素因数の和:1585

約数の個数: 16

約数和(自身を含む): 25603200

約数和(自身を除く): 4185251

約数列:

[1, 7, 41, 49, 287, 343, 1523, 2009, 10661, 14063, 62443, 74627, 437101, 522389, 3059707, 21417949]

約数ペア:

[(1, 21417949), (7, 3059707), (41, 522389), (49, 437101), (287, 74627), (343, 62443), (1523, 14063), (2009, 10661)]