81953137

素因数分解:

$7^2\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{113}}^1$

素因数の和:206

約数の個数: 36

約数和(自身を含む): 103980996

約数和(自身を除く): 22027859

約数列:

[1, 7, 19, 41, 49, 113, 133, 287, 361, 779, 791, 931, 2009, 2147, 2527, 4633, 5453, 5537, 14801, 15029, 17689, 32431, 38171, 40793, 88027, 103607, 105203, 227017, 285551, 616189, 725249, 1672513, 1998857, 4313323, 11707591, 81953137]

約数ペア:

[(1, 81953137), (7, 11707591), (19, 4313323), (41, 1998857), (49, 1672513), (113, 725249), (133, 616189), (287, 285551), (361, 227017), (779, 105203), (791, 103607), (931, 88027), (2009, 40793), (2147, 38171), (2527, 32431), (4633, 17689), (5453, 15029), (5537, 14801)]