20677755

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{4019}}^1$

素因数の和:4048

約数の個数: 32

約数和(自身を含む): 38592000

約数和(自身を除く): 17914245

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 4019, 5145, 12057, 20095, 28133, 60285, 84399, 140665, 196931, 421995, 590793, 984655, 1378517, 2953965, 4135551, 6892585, 20677755]

約数ペア:

[(1, 20677755), (3, 6892585), (5, 4135551), (7, 2953965), (15, 1378517), (21, 984655), (35, 590793), (49, 421995), (105, 196931), (147, 140665), (245, 84399), (343, 60285), (735, 28133), (1029, 20095), (1715, 12057), (4019, 5145)]