648921

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2377}}^1$

素因数の和:2400

約数の個数: 16

約数和(自身を含む): 1065344

約数和(自身を除く): 416423

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 2377, 7131, 16639, 30901, 49917, 92703, 216307, 648921]

約数ペア:

[(1, 648921), (3, 216307), (7, 92703), (13, 49917), (21, 30901), (39, 16639), (91, 7131), (273, 2377)]