20345311

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 25198560

約数和(自身を除く): 4853249

約数列:

[1, 7, 17, 89, 113, 119, 289, 623, 791, 1513, 1921, 2023, 10057, 10591, 13447, 25721, 32657, 70399, 170969, 180047, 228599, 1196783, 2906473, 20345311]

約数ペア:

[(1, 20345311), (7, 2906473), (17, 1196783), (89, 228599), (113, 180047), (119, 170969), (289, 70399), (623, 32657), (791, 25721), (1513, 13447), (1921, 10591), (2023, 10057)]