21996016

素因数分解:

$2^4\times 7^1\times {\mathrm{277}}^1\times {\mathrm{709}}^1$

素因数の和:1001

約数の個数: 40

約数和(自身を含む): 48950240

約数和(自身を除く): 26954224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 277, 554, 709, 1108, 1418, 1939, 2216, 2836, 3878, 4432, 4963, 5672, 7756, 9926, 11344, 15512, 19852, 31024, 39704, 79408, 196393, 392786, 785572, 1374751, 1571144, 2749502, 3142288, 5499004, 10998008, 21996016]

約数ペア:

[(1, 21996016), (2, 10998008), (4, 5499004), (7, 3142288), (8, 2749502), (14, 1571144), (16, 1374751), (28, 785572), (56, 392786), (112, 196393), (277, 79408), (554, 39704), (709, 31024), (1108, 19852), (1418, 15512), (1939, 11344), (2216, 9926), (2836, 7756), (3878, 5672), (4432, 4963)]