12884391

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:272

約数の個数: 36

約数和(自身を含む): 20725848

約数和(自身を除く): 7841457

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 169, 197, 387, 507, 559, 591, 1521, 1677, 1773, 2561, 5031, 7267, 7683, 8471, 21801, 23049, 25413, 33293, 65403, 76239, 99879, 110123, 299637, 330369, 991107, 1431599, 4294797, 12884391]

約数ペア:

[(1, 12884391), (3, 4294797), (9, 1431599), (13, 991107), (39, 330369), (43, 299637), (117, 110123), (129, 99879), (169, 76239), (197, 65403), (387, 33293), (507, 25413), (559, 23049), (591, 21801), (1521, 8471), (1677, 7683), (1773, 7267), (2561, 5031)]