20656190

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{121507}}^1$

素因数の和:121531

約数の個数: 16

約数和(自身を含む): 39368592

約数和(自身を除く): 18712402

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 121507, 243014, 607535, 1215070, 2065619, 4131238, 10328095, 20656190]

約数ペア:

[(1, 20656190), (2, 10328095), (5, 4131238), (10, 2065619), (17, 1215070), (34, 607535), (85, 243014), (170, 121507)]