278996367

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{420809}}^1$

素因数の和:420842

約数の個数: 16

約数和(自身を含む): 424176480

約数和(自身を除く): 145180113

約数列:

[1, 3, 13, 17, 39, 51, 221, 663, 420809, 1262427, 5470517, 7153753, 16411551, 21461259, 92998789, 278996367]

約数ペア:

[(1, 278996367), (3, 92998789), (13, 21461259), (17, 16411551), (39, 7153753), (51, 5470517), (221, 1262427), (663, 420809)]