18870292

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2239}}^1$

素因数の和:2300

約数の個数: 36

約数和(自身を含む): 39325440

約数和(自身を除く): 20455148

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 602, 1204, 2107, 2239, 4214, 4478, 8428, 8956, 15673, 31346, 62692, 96277, 109711, 192554, 219422, 385108, 438844, 673939, 1347878, 2695756, 4717573, 9435146, 18870292]

約数ペア:

[(1, 18870292), (2, 9435146), (4, 4717573), (7, 2695756), (14, 1347878), (28, 673939), (43, 438844), (49, 385108), (86, 219422), (98, 192554), (172, 109711), (196, 96277), (301, 62692), (602, 31346), (1204, 15673), (2107, 8956), (2239, 8428), (4214, 4478)]