642243

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{257}}^1$

素因数の和:291

約数の個数: 24

約数和(自身を含む): 1058832

約数和(自身を除く): 416589

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 257, 357, 771, 833, 1799, 2499, 4369, 5397, 12593, 13107, 30583, 37779, 91749, 214081, 642243]

約数ペア:

[(1, 642243), (3, 214081), (7, 91749), (17, 37779), (21, 30583), (49, 13107), (51, 12593), (119, 5397), (147, 4369), (257, 2499), (357, 1799), (771, 833)]