21710205

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{719}}^1$

素因数の和:802

約数の個数: 48

約数和(自身を含む): 41783040

約数和(自身を除く): 20072835

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 61, 99, 165, 183, 305, 495, 549, 671, 719, 915, 2013, 2157, 2745, 3355, 3595, 6039, 6471, 7909, 10065, 10785, 23727, 30195, 32355, 39545, 43859, 71181, 118635, 131577, 219295, 355905, 394731, 482449, 657885, 1447347, 1973655, 2412245, 4342041, 7236735, 21710205]

約数ペア:

[(1, 21710205), (3, 7236735), (5, 4342041), (9, 2412245), (11, 1973655), (15, 1447347), (33, 657885), (45, 482449), (55, 394731), (61, 355905), (99, 219295), (165, 131577), (183, 118635), (305, 71181), (495, 43859), (549, 39545), (671, 32355), (719, 30195), (915, 23727), (2013, 10785), (2157, 10065), (2745, 7909), (3355, 6471), (3595, 6039)]