19965168

素因数分解:

$2^4\times 3^2\times {\mathrm{138647}}^1$

素因数の和:138661

約数の個数: 30

約数和(自身を含む): 55875144

約数和(自身を除く): 35909976

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 138647, 277294, 415941, 554588, 831882, 1109176, 1247823, 1663764, 2218352, 2495646, 3327528, 4991292, 6655056, 9982584, 19965168]

約数ペア:

[(1, 19965168), (2, 9982584), (3, 6655056), (4, 4991292), (6, 3327528), (8, 2495646), (9, 2218352), (12, 1663764), (16, 1247823), (18, 1109176), (24, 831882), (36, 554588), (48, 415941), (72, 277294), (144, 138647)]