20817496

素因数分解:

$2^3\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1667}}^1$

素因数の和:1903

約数の個数: 32

約数和(自身を含む): 44835840

約数和(自身を除く): 24018344

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 223, 446, 892, 1561, 1667, 1784, 3122, 3334, 6244, 6668, 11669, 12488, 13336, 23338, 46676, 93352, 371741, 743482, 1486964, 2602187, 2973928, 5204374, 10408748, 20817496]

約数ペア:

[(1, 20817496), (2, 10408748), (4, 5204374), (7, 2973928), (8, 2602187), (14, 1486964), (28, 743482), (56, 371741), (223, 93352), (446, 46676), (892, 23338), (1561, 13336), (1667, 12488), (1784, 11669), (3122, 6668), (3334, 6244)]