23973985

素因数分解:

$5^1\times 7^4\times {\mathrm{1997}}^1$

素因数の和:2030

約数の個数: 20

約数和(自身を含む): 33578388

約数和(自身を除く): 9604403

約数列:

[1, 5, 7, 35, 49, 245, 343, 1715, 1997, 2401, 9985, 12005, 13979, 69895, 97853, 489265, 684971, 3424855, 4794797, 23973985]

約数ペア:

[(1, 23973985), (5, 4794797), (7, 3424855), (35, 684971), (49, 489265), (245, 97853), (343, 69895), (1715, 13979), (1997, 12005), (2401, 9985)]