28389711

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{283}}^1$

素因数の和:591

約数の個数: 32

約数和(自身を含む): 46130688

約数和(自身を除く): 17740977

約数列:

[1, 3, 7, 17, 21, 51, 119, 281, 283, 357, 843, 849, 1967, 1981, 4777, 4811, 5901, 5943, 14331, 14433, 33439, 33677, 79523, 100317, 101031, 238569, 556661, 1351891, 1669983, 4055673, 9463237, 28389711]

約数ペア:

[(1, 28389711), (3, 9463237), (7, 4055673), (17, 1669983), (21, 1351891), (51, 556661), (119, 238569), (281, 101031), (283, 100317), (357, 79523), (843, 33677), (849, 33439), (1967, 14433), (1981, 14331), (4777, 5943), (4811, 5901)]