21954500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{2311}}^1$

素因数の和:2349

約数の個数: 48

約数和(自身を含む): 50494080

約数和(自身を除く): 28539580

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 380, 475, 500, 950, 1900, 2311, 2375, 4622, 4750, 9244, 9500, 11555, 23110, 43909, 46220, 57775, 87818, 115550, 175636, 219545, 231100, 288875, 439090, 577750, 878180, 1097725, 1155500, 2195450, 4390900, 5488625, 10977250, 21954500]

約数ペア:

[(1, 21954500), (2, 10977250), (4, 5488625), (5, 4390900), (10, 2195450), (19, 1155500), (20, 1097725), (25, 878180), (38, 577750), (50, 439090), (76, 288875), (95, 231100), (100, 219545), (125, 175636), (190, 115550), (250, 87818), (380, 57775), (475, 46220), (500, 43909), (950, 23110), (1900, 11555), (2311, 9500), (2375, 9244), (4622, 4750)]