251149857

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{419}}^1$

素因数の和:542

約数の個数: 64

約数和(自身を含む): 429649920

約数和(自身を除く): 178500063

約数列:

[1, 3, 7, 17, 21, 23, 51, 69, 73, 119, 161, 219, 357, 391, 419, 483, 511, 1173, 1241, 1257, 1533, 1679, 2737, 2933, 3723, 5037, 7123, 8211, 8687, 8799, 9637, 11753, 21369, 26061, 28543, 28911, 30587, 35259, 49861, 67459, 85629, 91761, 149583, 163829, 199801, 202377, 214109, 491487, 519979, 599403, 642327, 703501, 1146803, 1559937, 2110503, 3440409, 3639853, 4924507, 10919559, 11959517, 14773521, 35878551, 83716619, 251149857]

約数ペア:

[(1, 251149857), (3, 83716619), (7, 35878551), (17, 14773521), (21, 11959517), (23, 10919559), (51, 4924507), (69, 3639853), (73, 3440409), (119, 2110503), (161, 1559937), (219, 1146803), (357, 703501), (391, 642327), (419, 599403), (483, 519979), (511, 491487), (1173, 214109), (1241, 202377), (1257, 199801), (1533, 163829), (1679, 149583), (2737, 91761), (2933, 85629), (3723, 67459), (5037, 49861), (7123, 35259), (8211, 30587), (8687, 28911), (8799, 28543), (9637, 26061), (11753, 21369)]