69985279

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{607}}^1$

素因数の和:815

約数の個数: 24

約数和(自身を含む): 88303488

約数和(自身を除く): 18318209

約数列:

[1, 7, 13, 49, 91, 181, 607, 637, 1267, 2353, 4249, 7891, 8869, 16471, 29743, 55237, 109867, 115297, 386659, 769069, 1428271, 5383483, 9997897, 69985279]

約数ペア:

[(1, 69985279), (7, 9997897), (13, 5383483), (49, 1428271), (91, 769069), (181, 386659), (607, 115297), (637, 109867), (1267, 55237), (2353, 29743), (4249, 16471), (7891, 8869)]