18831033

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 31711680

約数和(自身を除く): 12880647

約数列:

[1, 3, 9, 13, 19, 39, 43, 57, 117, 129, 171, 197, 247, 387, 559, 591, 741, 817, 1677, 1773, 2223, 2451, 2561, 3743, 5031, 7353, 7683, 8471, 10621, 11229, 23049, 25413, 31863, 33687, 48659, 76239, 95589, 110123, 145977, 160949, 330369, 437931, 482847, 991107, 1448541, 2092337, 6277011, 18831033]

約数ペア:

[(1, 18831033), (3, 6277011), (9, 2092337), (13, 1448541), (19, 991107), (39, 482847), (43, 437931), (57, 330369), (117, 160949), (129, 145977), (171, 110123), (197, 95589), (247, 76239), (387, 48659), (559, 33687), (591, 31863), (741, 25413), (817, 23049), (1677, 11229), (1773, 10621), (2223, 8471), (2451, 7683), (2561, 7353), (3743, 5031)]