291277217

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{2153}}^1$

素因数の和:2429

約数の個数: 24

約数和(自身を含む): 371280672

約数和(自身を除く): 80003455

約数列:

[1, 7, 11, 49, 77, 251, 539, 1757, 2153, 2761, 12299, 15071, 19327, 23683, 105497, 135289, 165781, 540403, 1160467, 3782821, 5944433, 26479747, 41611031, 291277217]

約数ペア:

[(1, 291277217), (7, 41611031), (11, 26479747), (49, 5944433), (77, 3782821), (251, 1160467), (539, 540403), (1757, 165781), (2153, 135289), (2761, 105497), (12299, 23683), (15071, 19327)]