19970691

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{26951}}^1$

素因数の和:26986

約数の個数: 16

約数和(自身を含む): 30186240

約数和(自身を除く): 10215549

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 26951, 80853, 350363, 512069, 1051089, 1536207, 6656897, 19970691]

約数ペア:

[(1, 19970691), (3, 6656897), (13, 1536207), (19, 1051089), (39, 512069), (57, 350363), (247, 80853), (741, 26951)]