81733421

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 114255360

約数和(自身を除く): 32521939

約数列:

[1, 7, 11, 19, 23, 49, 77, 133, 161, 209, 253, 347, 437, 539, 931, 1127, 1463, 1771, 2429, 3059, 3817, 4807, 6593, 7981, 10241, 12397, 17003, 21413, 26719, 33649, 46151, 55867, 72523, 87791, 151639, 187033, 235543, 323057, 391069, 507661, 614537, 1061473, 1668029, 3553627, 4301759, 7430311, 11676203, 81733421]

約数ペア:

[(1, 81733421), (7, 11676203), (11, 7430311), (19, 4301759), (23, 3553627), (49, 1668029), (77, 1061473), (133, 614537), (161, 507661), (209, 391069), (253, 323057), (347, 235543), (437, 187033), (539, 151639), (931, 87791), (1127, 72523), (1463, 55867), (1771, 46151), (2429, 33649), (3059, 26719), (3817, 21413), (4807, 17003), (6593, 12397), (7981, 10241)]