13456821

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{2953}}^1$

素因数の和:3001

約数の個数: 24

約数和(自身を含む): 21552384

約数和(自身を除く): 8095563

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 2953, 4557, 8859, 20671, 62013, 91543, 144697, 274629, 434091, 640801, 1922403, 4485607, 13456821]

約数ペア:

[(1, 13456821), (3, 4485607), (7, 1922403), (21, 640801), (31, 434091), (49, 274629), (93, 144697), (147, 91543), (217, 62013), (651, 20671), (1519, 8859), (2953, 4557)]