81737607

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 138018816

約数和(自身を除く): 56281209

約数列:

[1, 3, 7, 21, 23, 31, 53, 69, 93, 103, 159, 161, 217, 309, 371, 483, 651, 713, 721, 1113, 1219, 1643, 2139, 2163, 2369, 3193, 3657, 4929, 4991, 5459, 7107, 8533, 9579, 11501, 14973, 16377, 16583, 22351, 25599, 34503, 37789, 38213, 49749, 67053, 73439, 113367, 114639, 125557, 169229, 220317, 264523, 376671, 507687, 514073, 793569, 878899, 1184603, 1542219, 2636697, 3553809, 3892267, 11676801, 27245869, 81737607]

約数ペア:

[(1, 81737607), (3, 27245869), (7, 11676801), (21, 3892267), (23, 3553809), (31, 2636697), (53, 1542219), (69, 1184603), (93, 878899), (103, 793569), (159, 514073), (161, 507687), (217, 376671), (309, 264523), (371, 220317), (483, 169229), (651, 125557), (713, 114639), (721, 113367), (1113, 73439), (1219, 67053), (1643, 49749), (2139, 38213), (2163, 37789), (2369, 34503), (3193, 25599), (3657, 22351), (4929, 16583), (4991, 16377), (5459, 14973), (7107, 11501), (8533, 9579)]