21985736

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1327}}^1$

素因数の和:1461

約数の個数: 32

約数和(自身を含む): 43824000

約数和(自身を除く): 21838264

約数列:

[1, 2, 4, 8, 19, 38, 76, 109, 152, 218, 436, 872, 1327, 2071, 2654, 4142, 5308, 8284, 10616, 16568, 25213, 50426, 100852, 144643, 201704, 289286, 578572, 1157144, 2748217, 5496434, 10992868, 21985736]

約数ペア:

[(1, 21985736), (2, 10992868), (4, 5496434), (8, 2748217), (19, 1157144), (38, 578572), (76, 289286), (109, 201704), (152, 144643), (218, 100852), (436, 50426), (872, 25213), (1327, 16568), (2071, 10616), (2654, 8284), (4142, 5308)]