28891857

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:369

約数の個数: 32

約数和(自身を含む): 42747264

約数和(自身を除く): 13855407

約数列:

[1, 3, 17, 37, 51, 61, 111, 183, 251, 629, 753, 1037, 1887, 2257, 3111, 4267, 6771, 9287, 12801, 15311, 27861, 38369, 45933, 115107, 157879, 260287, 473637, 566507, 780861, 1699521, 9630619, 28891857]

約数ペア:

[(1, 28891857), (3, 9630619), (17, 1699521), (37, 780861), (51, 566507), (61, 473637), (111, 260287), (183, 157879), (251, 115107), (629, 45933), (753, 38369), (1037, 27861), (1887, 15311), (2257, 12801), (3111, 9287), (4267, 6771)]