20720196

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{82223}}^1$

素因数の和:82240

約数の個数: 36

約数和(自身を含む): 59859072

約数和(自身を除く): 39138876

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 82223, 164446, 246669, 328892, 493338, 575561, 740007, 986676, 1151122, 1480014, 1726683, 2302244, 2960028, 3453366, 5180049, 6906732, 10360098, 20720196]

約数ペア:

[(1, 20720196), (2, 10360098), (3, 6906732), (4, 5180049), (6, 3453366), (7, 2960028), (9, 2302244), (12, 1726683), (14, 1480014), (18, 1151122), (21, 986676), (28, 740007), (36, 575561), (42, 493338), (63, 328892), (84, 246669), (126, 164446), (252, 82223)]