18669621

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{6907}}^1$

素因数の和:6980

約数の個数: 16

約数和(自身を含む): 26858304

約数和(自身を除く): 8188683

約数列:

[1, 3, 17, 51, 53, 159, 901, 2703, 6907, 20721, 117419, 352257, 366071, 1098213, 6223207, 18669621]

約数ペア:

[(1, 18669621), (3, 6223207), (17, 1098213), (51, 366071), (53, 352257), (159, 117419), (901, 20721), (2703, 6907)]