2018025819

素因数分解:

$3^8\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:401

約数の個数: 72

約数和(自身を含む): 3242333952

約数和(自身を除く): 1224308133

約数列:

[1, 3, 9, 23, 27, 43, 69, 81, 129, 207, 243, 311, 387, 621, 729, 933, 989, 1161, 1863, 2187, 2799, 2967, 3483, 5589, 6561, 7153, 8397, 8901, 10449, 13373, 16767, 21459, 25191, 26703, 31347, 40119, 50301, 64377, 75573, 80109, 94041, 120357, 150903, 193131, 226719, 240327, 282123, 307579, 361071, 579393, 680157, 720981, 922737, 1083213, 1738179, 2040471, 2162943, 2768211, 3249639, 5214537, 6488829, 8304633, 9748917, 15643611, 24913899, 29246751, 46930833, 74741697, 87740253, 224225091, 672675273, 2018025819]

約数ペア:

[(1, 2018025819), (3, 672675273), (9, 224225091), (23, 87740253), (27, 74741697), (43, 46930833), (69, 29246751), (81, 24913899), (129, 15643611), (207, 9748917), (243, 8304633), (311, 6488829), (387, 5214537), (621, 3249639), (729, 2768211), (933, 2162943), (989, 2040471), (1161, 1738179), (1863, 1083213), (2187, 922737), (2799, 720981), (2967, 680157), (3483, 579393), (5589, 361071), (6561, 307579), (7153, 282123), (8397, 240327), (8901, 226719), (10449, 193131), (13373, 150903), (16767, 120357), (21459, 94041), (25191, 80109), (26703, 75573), (31347, 64377), (40119, 50301)]