20768895

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{9419}}^1$

素因数の和:9444

約数の個数: 36

約数和(自身を含む): 41881320

約数和(自身を除く): 21112425

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 9419, 28257, 47095, 65933, 84771, 141285, 197799, 329665, 423855, 461531, 593397, 988995, 1384593, 2307655, 2966985, 4153779, 6922965, 20768895]

約数ペア:

[(1, 20768895), (3, 6922965), (5, 4153779), (7, 2966985), (9, 2307655), (15, 1384593), (21, 988995), (35, 593397), (45, 461531), (49, 423855), (63, 329665), (105, 197799), (147, 141285), (245, 84771), (315, 65933), (441, 47095), (735, 28257), (2205, 9419)]