19972658

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{373}}^1\times {\mathrm{653}}^1$

素因数の和:1069

約数の個数: 16

約数和(自身を含む): 30819096

約数和(自身を除く): 10846438

約数列:

[1, 2, 41, 82, 373, 653, 746, 1306, 15293, 26773, 30586, 53546, 243569, 487138, 9986329, 19972658]

約数ペア:

[(1, 19972658), (2, 9986329), (41, 487138), (82, 243569), (373, 53546), (653, 30586), (746, 26773), (1306, 15293)]