26721009

素因数分解:

$3^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{683}}^1$

素因数の和:728

約数の個数: 48

約数和(自身を含む): 47803392

約数和(自身を除く): 21082383

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 243, 483, 567, 621, 683, 1449, 1701, 1863, 2049, 4347, 4781, 5589, 6147, 13041, 14343, 15709, 18441, 39123, 43029, 47127, 55323, 109963, 129087, 141381, 165969, 329889, 387261, 424143, 989667, 1161783, 1272429, 2969001, 3817287, 8907003, 26721009]

約数ペア:

[(1, 26721009), (3, 8907003), (7, 3817287), (9, 2969001), (21, 1272429), (23, 1161783), (27, 989667), (63, 424143), (69, 387261), (81, 329889), (161, 165969), (189, 141381), (207, 129087), (243, 109963), (483, 55323), (567, 47127), (621, 43029), (683, 39123), (1449, 18441), (1701, 15709), (1863, 14343), (2049, 13041), (4347, 6147), (4781, 5589)]