28005915

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2447}}^1$

素因数の和:2571

約数の個数: 32

約数和(自身を含む): 51701760

約数和(自身を除く): 23695845

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 109, 327, 545, 763, 1635, 2289, 2447, 3815, 7341, 11445, 12235, 17129, 36705, 51387, 85645, 256935, 266723, 800169, 1333615, 1867061, 4000845, 5601183, 9335305, 28005915]

約数ペア:

[(1, 28005915), (3, 9335305), (5, 5601183), (7, 4000845), (15, 1867061), (21, 1333615), (35, 800169), (105, 266723), (109, 256935), (327, 85645), (545, 51387), (763, 36705), (1635, 17129), (2289, 12235), (2447, 11445), (3815, 7341)]