20709519

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{13099}}^1$

素因数の和:13150

約数の個数: 16

約数和(自身を含む): 30182400

約数和(自身を除く): 9472881

約数列:

[1, 3, 17, 31, 51, 93, 527, 1581, 13099, 39297, 222683, 406069, 668049, 1218207, 6903173, 20709519]

約数ペア:

[(1, 20709519), (3, 6903173), (17, 1218207), (31, 668049), (51, 406069), (93, 222683), (527, 39297), (1581, 13099)]