15390921

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{56377}}^1$

素因数の和:56400

約数の個数: 16

約数和(自身を含む): 25257344

約数和(自身を除く): 9866423

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 56377, 169131, 394639, 732901, 1183917, 2198703, 5130307, 15390921]

約数ペア:

[(1, 15390921), (3, 5130307), (7, 2198703), (13, 1183917), (21, 732901), (39, 394639), (91, 169131), (273, 56377)]