81790401

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{523}}^1\times {\mathrm{677}}^1$

素因数の和:1221

約数の個数: 32

約数和(自身を含む): 136424448

約数和(自身を除く): 54634047

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 523, 677, 1569, 2031, 3661, 4739, 5753, 7447, 10983, 14217, 17259, 22341, 40271, 52129, 120813, 156387, 354071, 1062213, 2478497, 3894781, 7435491, 11684343, 27263467, 81790401]

約数ペア:

[(1, 81790401), (3, 27263467), (7, 11684343), (11, 7435491), (21, 3894781), (33, 2478497), (77, 1062213), (231, 354071), (523, 156387), (677, 120813), (1569, 52129), (2031, 40271), (3661, 22341), (4739, 17259), (5753, 14217), (7447, 10983)]