28883421

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{12391}}^1$

素因数の和:12441

約数の個数: 24

約数和(自身を含む): 48973184

約数和(自身を除く): 20089763

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 12391, 37173, 86737, 111519, 260211, 458467, 780633, 1375401, 3209269, 4126203, 9627807, 28883421]

約数ペア:

[(1, 28883421), (3, 9627807), (7, 4126203), (9, 3209269), (21, 1375401), (37, 780633), (63, 458467), (111, 260211), (259, 111519), (333, 86737), (777, 37173), (2331, 12391)]