21190091

素因数分解:

${\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{439}}^1$

素因数の和:578

約数の個数: 16

約数和(自身を含む): 23654400

約数和(自身を除く): 2464309

約数列:

[1, 13, 47, 79, 439, 611, 1027, 3713, 5707, 20633, 34681, 48269, 268229, 450853, 1630007, 21190091]

約数ペア:

[(1, 21190091), (13, 1630007), (47, 450853), (79, 268229), (439, 48269), (611, 34681), (1027, 20633), (3713, 5707)]