20662551

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{25229}}^1$

素因数の和:25255

約数の個数: 24

約数和(自身を含む): 36734880

約数和(自身を除く): 16072329

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 25229, 75687, 176603, 227061, 327977, 529809, 983931, 1589427, 2295839, 2951793, 6887517, 20662551]

約数ペア:

[(1, 20662551), (3, 6887517), (7, 2951793), (9, 2295839), (13, 1589427), (21, 983931), (39, 529809), (63, 327977), (91, 227061), (117, 176603), (273, 75687), (819, 25229)]