20773788

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1109}}^1$

素因数の和:1346

約数の個数: 48

約数和(自身を含む): 55695360

約数和(自身を除く): 34921572

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 223, 446, 669, 892, 1109, 1338, 1561, 2218, 2676, 3122, 3327, 4436, 4683, 6244, 6654, 7763, 9366, 13308, 15526, 18732, 23289, 31052, 46578, 93156, 247307, 494614, 741921, 989228, 1483842, 1731149, 2967684, 3462298, 5193447, 6924596, 10386894, 20773788]

約数ペア:

[(1, 20773788), (2, 10386894), (3, 6924596), (4, 5193447), (6, 3462298), (7, 2967684), (12, 1731149), (14, 1483842), (21, 989228), (28, 741921), (42, 494614), (84, 247307), (223, 93156), (446, 46578), (669, 31052), (892, 23289), (1109, 18732), (1338, 15526), (1561, 13308), (2218, 9366), (2676, 7763), (3122, 6654), (3327, 6244), (4436, 4683)]