1387969919

素因数分解:

$7^1\times {\mathrm{127}}^1\times {\mathrm{557}}^1\times {\mathrm{2803}}^1$

素因数の和:3494

約数の個数: 16

約数和(自身を含む): 1602183168

約数和(自身を除く): 214213249

約数列:

[1, 7, 127, 557, 889, 2803, 3899, 19621, 70739, 355981, 495173, 1561271, 2491867, 10928897, 198281417, 1387969919]

約数ペア:

[(1, 1387969919), (7, 198281417), (127, 10928897), (557, 2491867), (889, 1561271), (2803, 495173), (3899, 355981), (19621, 70739)]