20531626

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{653}}^1$

素因数の和:933

約数の個数: 16

約数和(自身を含む): 31392000

約数和(自身を除く): 10860374

約数列:

[1, 2, 79, 158, 199, 398, 653, 1306, 15721, 31442, 51587, 103174, 129947, 259894, 10265813, 20531626]

約数ペア:

[(1, 20531626), (2, 10265813), (79, 259894), (158, 129947), (199, 103174), (398, 51587), (653, 31442), (1306, 15721)]