20993089

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1151}}^1$

素因数の和:1248

約数の個数: 16

約数和(自身を含む): 23998464

約数和(自身を除く): 3005375

約数列:

[1, 13, 23, 61, 299, 793, 1151, 1403, 14963, 18239, 26473, 70211, 344149, 912743, 1614853, 20993089]

約数ペア:

[(1, 20993089), (13, 1614853), (23, 912743), (61, 344149), (299, 70211), (793, 26473), (1151, 18239), (1403, 14963)]