81309358

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{19919}}^1$

素因数の和:20091

約数の個数: 16

約数和(自身を含む): 132189120

約数和(自身を除く): 50879762

約数列:

[1, 2, 13, 26, 157, 314, 2041, 4082, 19919, 39838, 258947, 517894, 3127283, 6254566, 40654679, 81309358]

約数ペア:

[(1, 81309358), (2, 40654679), (13, 6254566), (26, 3127283), (157, 517894), (314, 258947), (2041, 39838), (4082, 19919)]