15981329

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2879}}^1$

素因数の和:2960

約数の個数: 16

約数和(自身を含む): 19998720

約数和(自身を除く): 4017391

約数列:

[1, 7, 13, 61, 91, 427, 793, 2879, 5551, 20153, 37427, 175619, 261989, 1229333, 2283047, 15981329]

約数ペア:

[(1, 15981329), (7, 2283047), (13, 1229333), (61, 261989), (91, 175619), (427, 37427), (793, 20153), (2879, 5551)]