201978441

素因数分解:

$3^5\times 7^2\times {\mathrm{16963}}^1$

素因数の和:16992

約数の個数: 36

約数和(自身を含む): 351969072

約数和(自身を除く): 149990631

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 567, 1323, 1701, 3969, 11907, 16963, 50889, 118741, 152667, 356223, 458001, 831187, 1068669, 1374003, 2493561, 3206007, 4122009, 7480683, 9618021, 22442049, 28854063, 67326147, 201978441]

約数ペア:

[(1, 201978441), (3, 67326147), (7, 28854063), (9, 22442049), (21, 9618021), (27, 7480683), (49, 4122009), (63, 3206007), (81, 2493561), (147, 1374003), (189, 1068669), (243, 831187), (441, 458001), (567, 356223), (1323, 152667), (1701, 118741), (3969, 50889), (11907, 16963)]