21555018

素因数分解:

$2^1\times 3^3\times {\mathrm{563}}^1\times {\mathrm{709}}^1$

素因数の和:1283

約数の個数: 32

約数和(自身を含む): 48052800

約数和(自身を除く): 26497782

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 563, 709, 1126, 1418, 1689, 2127, 3378, 4254, 5067, 6381, 10134, 12762, 15201, 19143, 30402, 38286, 399167, 798334, 1197501, 2395002, 3592503, 7185006, 10777509, 21555018]

約数ペア:

[(1, 21555018), (2, 10777509), (3, 7185006), (6, 3592503), (9, 2395002), (18, 1197501), (27, 798334), (54, 399167), (563, 38286), (709, 30402), (1126, 19143), (1418, 15201), (1689, 12762), (2127, 10134), (3378, 6381), (4254, 5067)]