15981681

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{541}}^1$

素因数の和:816

約数の個数: 16

約数和(自身を含む): 21940160

約数和(自身を除く): 5958479

約数列:

[1, 3, 43, 129, 229, 541, 687, 1623, 9847, 23263, 29541, 69789, 123889, 371667, 5327227, 15981681]

約数ペア:

[(1, 15981681), (3, 5327227), (43, 371667), (129, 123889), (229, 69789), (541, 29541), (687, 23263), (1623, 9847)]