17681985

素因数分解:

$3^2\times 5^1\times {\mathrm{613}}^1\times {\mathrm{641}}^1$

素因数の和:1265

約数の個数: 24

約数和(自身を含む): 30746664

約数和(自身を除く): 13064679

約数列:

[1, 3, 5, 9, 15, 45, 613, 641, 1839, 1923, 3065, 3205, 5517, 5769, 9195, 9615, 27585, 28845, 392933, 1178799, 1964665, 3536397, 5893995, 17681985]

約数ペア:

[(1, 17681985), (3, 5893995), (5, 3536397), (9, 1964665), (15, 1178799), (45, 392933), (613, 28845), (641, 27585), (1839, 9615), (1923, 9195), (3065, 5769), (3205, 5517)]