18996890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{373}}^1\times {\mathrm{463}}^1$

素因数の和:854

約数の個数: 32

約数和(自身を含む): 37483776

約数和(自身を除く): 18486886

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 373, 463, 746, 926, 1865, 2315, 3730, 4103, 4630, 5093, 8206, 10186, 20515, 25465, 41030, 50930, 172699, 345398, 863495, 1726990, 1899689, 3799378, 9498445, 18996890]

約数ペア:

[(1, 18996890), (2, 9498445), (5, 3799378), (10, 1899689), (11, 1726990), (22, 863495), (55, 345398), (110, 172699), (373, 50930), (463, 41030), (746, 25465), (926, 20515), (1865, 10186), (2315, 8206), (3730, 5093), (4103, 4630)]