21012016

素因数分解:

$2^4\times {\mathrm{919}}^1\times {\mathrm{1429}}^1$

素因数の和:2356

約数の個数: 20

約数和(自身を含む): 40783600

約数和(自身を除く): 19771584

約数列:

[1, 2, 4, 8, 16, 919, 1429, 1838, 2858, 3676, 5716, 7352, 11432, 14704, 22864, 1313251, 2626502, 5253004, 10506008, 21012016]

約数ペア:

[(1, 21012016), (2, 10506008), (4, 5253004), (8, 2626502), (16, 1313251), (919, 22864), (1429, 14704), (1838, 11432), (2858, 7352), (3676, 5716)]