28199241

素因数分解:

$3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2851}}^1$

素因数の和:3021

約数の個数: 24

約数和(自身を含む): 46864064

約数和(自身を除く): 18664823

約数列:

[1, 3, 7, 9, 21, 63, 157, 471, 1099, 1413, 2851, 3297, 8553, 9891, 19957, 25659, 59871, 179613, 447607, 1342821, 3133249, 4028463, 9399747, 28199241]

約数ペア:

[(1, 28199241), (3, 9399747), (7, 4028463), (9, 3133249), (21, 1342821), (63, 447607), (157, 179613), (471, 59871), (1099, 25659), (1413, 19957), (2851, 9891), (3297, 8553)]