28782974

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{18427}}^1$

素因数の和:18511

約数の個数: 16

約数和(自身を含む): 47765376

約数和(自身を除く): 18982402

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 18427, 36854, 202697, 405394, 1308317, 2616634, 14391487, 28782974]

約数ペア:

[(1, 28782974), (2, 14391487), (11, 2616634), (22, 1308317), (71, 405394), (142, 202697), (781, 36854), (1562, 18427)]