81338089

素因数分解:

$7^2\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:377

約数の個数: 24

約数和(自身を含む): 97084680

約数和(自身を除く): 15746591

約数列:

[1, 7, 49, 97, 109, 157, 679, 763, 1099, 4753, 5341, 7693, 10573, 15229, 17113, 74011, 106603, 119791, 518077, 746221, 838537, 1659961, 11619727, 81338089]

約数ペア:

[(1, 81338089), (7, 11619727), (49, 1659961), (97, 838537), (109, 746221), (157, 518077), (679, 119791), (763, 106603), (1099, 74011), (4753, 17113), (5341, 15229), (7693, 10573)]