15540417

素因数分解:

$3^4\times {\mathrm{173}}^1\times {\mathrm{1109}}^1$

素因数の和:1294

約数の個数: 20

約数和(自身を含む): 23369940

約数和(自身を除く): 7829523

約数列:

[1, 3, 9, 27, 81, 173, 519, 1109, 1557, 3327, 4671, 9981, 14013, 29943, 89829, 191857, 575571, 1726713, 5180139, 15540417]

約数ペア:

[(1, 15540417), (3, 5180139), (9, 1726713), (27, 575571), (81, 191857), (173, 89829), (519, 29943), (1109, 14013), (1557, 9981), (3327, 4671)]