20771212

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3967}}^1$

素因数の和:4006

約数の個数: 48

約数和(自身を含む): 47996928

約数和(自身を除く): 27225716

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 68, 77, 119, 154, 187, 238, 308, 374, 476, 748, 1309, 2618, 3967, 5236, 7934, 15868, 27769, 43637, 55538, 67439, 87274, 111076, 134878, 174548, 269756, 305459, 472073, 610918, 741829, 944146, 1221836, 1483658, 1888292, 2967316, 5192803, 10385606, 20771212]

約数ペア:

[(1, 20771212), (2, 10385606), (4, 5192803), (7, 2967316), (11, 1888292), (14, 1483658), (17, 1221836), (22, 944146), (28, 741829), (34, 610918), (44, 472073), (68, 305459), (77, 269756), (119, 174548), (154, 134878), (187, 111076), (238, 87274), (308, 67439), (374, 55538), (476, 43637), (748, 27769), (1309, 15868), (2618, 7934), (3967, 5236)]