1621371921

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{255053}}^1$

素因数の和:255232

約数の個数: 16

約数和(自身を含む): 2342415936

約数和(自身を除く): 721044015

約数列:

[1, 3, 13, 39, 163, 489, 2119, 6357, 255053, 765159, 3315689, 9947067, 41573639, 124720917, 540457307, 1621371921]

約数ペア:

[(1, 1621371921), (3, 540457307), (13, 124720917), (39, 41573639), (163, 9947067), (489, 3315689), (2119, 765159), (6357, 255053)]