21000401284

素因数分解:

$2^2\times {\mathrm{33391}}^1\times {\mathrm{157231}}^1$

素因数の和:190626

約数の個数: 12

約数和(自身を含む): 36752036608

約数和(自身を除く): 15751635324

約数列:

[1, 2, 4, 33391, 66782, 133564, 157231, 314462, 628924, 5250100321, 10500200642, 21000401284]

約数ペア:

[(1, 21000401284), (2, 10500200642), (4, 5250100321), (33391, 628924), (66782, 314462), (133564, 157231)]