289774947

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{641}}^1$

素因数の和:784

約数の個数: 64

約数和(自身を含む): 512778240

約数和(自身を除く): 223003293

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 77, 103, 133, 209, 231, 309, 399, 627, 641, 721, 1133, 1463, 1923, 1957, 2163, 3399, 4389, 4487, 5871, 7051, 7931, 12179, 13461, 13699, 21153, 21527, 23793, 36537, 41097, 49357, 64581, 66023, 85253, 133969, 148071, 150689, 198069, 255759, 401907, 452067, 462161, 726253, 937783, 1254437, 1386483, 2178759, 2813349, 3763311, 5083771, 8781059, 13798807, 15251313, 26343177, 41396421, 96591649, 289774947]

約数ペア:

[(1, 289774947), (3, 96591649), (7, 41396421), (11, 26343177), (19, 15251313), (21, 13798807), (33, 8781059), (57, 5083771), (77, 3763311), (103, 2813349), (133, 2178759), (209, 1386483), (231, 1254437), (309, 937783), (399, 726253), (627, 462161), (641, 452067), (721, 401907), (1133, 255759), (1463, 198069), (1923, 150689), (1957, 148071), (2163, 133969), (3399, 85253), (4389, 66023), (4487, 64581), (5871, 49357), (7051, 41097), (7931, 36537), (12179, 23793), (13461, 21527), (13699, 21153)]