20729445

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1721}}^1$

素因数の和:1813

約数の個数: 32

約数和(自身を含む): 36699264

約数和(自身を除く): 15969819

約数列:

[1, 3, 5, 11, 15, 33, 55, 73, 165, 219, 365, 803, 1095, 1721, 2409, 4015, 5163, 8605, 12045, 18931, 25815, 56793, 94655, 125633, 283965, 376899, 628165, 1381963, 1884495, 4145889, 6909815, 20729445]

約数ペア:

[(1, 20729445), (3, 6909815), (5, 4145889), (11, 1884495), (15, 1381963), (33, 628165), (55, 376899), (73, 283965), (165, 125633), (219, 94655), (365, 56793), (803, 25815), (1095, 18931), (1721, 12045), (2409, 8605), (4015, 5163)]