19721527178

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{129793}}^1$

素因数の和:129962

約数の個数: 32

約数和(自身を含む): 32381007120

約数和(自身を除く): 12659479942

約数列:

[1, 2, 17, 34, 41, 82, 109, 218, 697, 1394, 1853, 3706, 4469, 8938, 75973, 129793, 151946, 259586, 2206481, 4412962, 5321513, 10643026, 14147437, 28294874, 90465721, 180931442, 240506429, 481012858, 580044917, 1160089834, 9860763589, 19721527178]

約数ペア:

[(1, 19721527178), (2, 9860763589), (17, 1160089834), (34, 580044917), (41, 481012858), (82, 240506429), (109, 180931442), (218, 90465721), (697, 28294874), (1394, 14147437), (1853, 10643026), (3706, 5321513), (4469, 4412962), (8938, 2206481), (75973, 259586), (129793, 151946)]