81489023

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 110315520

約数和(自身を除く): 28826497

約数列:

[1, 7, 11, 23, 47, 77, 89, 121, 161, 253, 329, 517, 623, 847, 979, 1081, 1771, 2047, 2783, 3619, 4183, 5687, 6853, 7567, 10769, 11891, 14329, 19481, 22517, 29281, 39809, 46013, 75383, 83237, 96209, 130801, 157619, 247687, 322091, 506143, 673463, 915607, 1058299, 1733809, 3543001, 7408093, 11641289, 81489023]

約数ペア:

[(1, 81489023), (7, 11641289), (11, 7408093), (23, 3543001), (47, 1733809), (77, 1058299), (89, 915607), (121, 673463), (161, 506143), (253, 322091), (329, 247687), (517, 157619), (623, 130801), (847, 96209), (979, 83237), (1081, 75383), (1771, 46013), (2047, 39809), (2783, 29281), (3619, 22517), (4183, 19481), (5687, 14329), (6853, 11891), (7567, 10769)]