20954864

素因数分解:

$2^4\times 7^1\times {\mathrm{223}}^1\times {\mathrm{839}}^1$

素因数の和:1077

約数の個数: 40

約数和(自身を含む): 46663680

約数和(自身を除く): 25708816

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 223, 446, 839, 892, 1561, 1678, 1784, 3122, 3356, 3568, 5873, 6244, 6712, 11746, 12488, 13424, 23492, 24976, 46984, 93968, 187097, 374194, 748388, 1309679, 1496776, 2619358, 2993552, 5238716, 10477432, 20954864]

約数ペア:

[(1, 20954864), (2, 10477432), (4, 5238716), (7, 2993552), (8, 2619358), (14, 1496776), (16, 1309679), (28, 748388), (56, 374194), (112, 187097), (223, 93968), (446, 46984), (839, 24976), (892, 23492), (1561, 13424), (1678, 12488), (1784, 11746), (3122, 6712), (3356, 6244), (3568, 5873)]