19916008

素因数分解:

$2^3\times 7^1\times {\mathrm{355643}}^1$

素因数の和:355656

約数の個数: 16

約数和(自身を含む): 42677280

約数和(自身を除く): 22761272

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 355643, 711286, 1422572, 2489501, 2845144, 4979002, 9958004, 19916008]

約数ペア:

[(1, 19916008), (2, 9958004), (4, 4979002), (7, 2845144), (8, 2489501), (14, 1422572), (28, 711286), (56, 355643)]