21763550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{739}}^1$

素因数の和:801

約数の個数: 48

約数和(自身を含む): 44044800

約数和(自身を除く): 22281250

約数列:

[1, 2, 5, 10, 19, 25, 31, 38, 50, 62, 95, 155, 190, 310, 475, 589, 739, 775, 950, 1178, 1478, 1550, 2945, 3695, 5890, 7390, 14041, 14725, 18475, 22909, 28082, 29450, 36950, 45818, 70205, 114545, 140410, 229090, 351025, 435271, 572725, 702050, 870542, 1145450, 2176355, 4352710, 10881775, 21763550]

約数ペア:

[(1, 21763550), (2, 10881775), (5, 4352710), (10, 2176355), (19, 1145450), (25, 870542), (31, 702050), (38, 572725), (50, 435271), (62, 351025), (95, 229090), (155, 140410), (190, 114545), (310, 70205), (475, 45818), (589, 36950), (739, 29450), (775, 28082), (950, 22909), (1178, 18475), (1478, 14725), (1550, 14041), (2945, 7390), (3695, 5890)]