21000294

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{166669}}^1$

素因数の和:166684

約数の個数: 24

約数和(自身を含む): 52001040

約数和(自身を除く): 31000746

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 166669, 333338, 500007, 1000014, 1166683, 1500021, 2333366, 3000042, 3500049, 7000098, 10500147, 21000294]

約数ペア:

[(1, 21000294), (2, 10500147), (3, 7000098), (6, 3500049), (7, 3000042), (9, 2333366), (14, 1500021), (18, 1166683), (21, 1000014), (42, 500007), (63, 333338), (126, 166669)]