21259010

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{125053}}^1$

素因数の和:125077

約数の個数: 16

約数和(自身を含む): 40517496

約数和(自身を除く): 19258486

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 125053, 250106, 625265, 1250530, 2125901, 4251802, 10629505, 21259010]

約数ペア:

[(1, 21259010), (2, 10629505), (5, 4251802), (10, 2125901), (17, 1250530), (34, 625265), (85, 250106), (170, 125053)]