20281476

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2687}}^1$

素因数の和:2748

約数の個数: 48

約数和(自身を含む): 51480576

約数和(自身を除く): 31199100

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 37, 51, 68, 74, 102, 111, 148, 204, 222, 444, 629, 1258, 1887, 2516, 2687, 3774, 5374, 7548, 8061, 10748, 16122, 32244, 45679, 91358, 99419, 137037, 182716, 198838, 274074, 298257, 397676, 548148, 596514, 1193028, 1690123, 3380246, 5070369, 6760492, 10140738, 20281476]

約数ペア:

[(1, 20281476), (2, 10140738), (3, 6760492), (4, 5070369), (6, 3380246), (12, 1690123), (17, 1193028), (34, 596514), (37, 548148), (51, 397676), (68, 298257), (74, 274074), (102, 198838), (111, 182716), (148, 137037), (204, 99419), (222, 91358), (444, 45679), (629, 32244), (1258, 16122), (1887, 10748), (2516, 8061), (2687, 7548), (3774, 5374)]