2905009009

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{2297}}^1$

素因数の和:2617

約数の個数: 32

約数和(自身を含む): 3604734720

約数和(自身を除く): 699725711

約数列:

[1, 7, 19, 37, 133, 257, 259, 703, 1799, 2297, 4883, 4921, 9509, 16079, 34181, 43643, 66563, 84989, 180671, 305501, 590329, 594923, 1264697, 1614791, 4132303, 11216251, 11303537, 21842173, 78513757, 152895211, 415001287, 2905009009]

約数ペア:

[(1, 2905009009), (7, 415001287), (19, 152895211), (37, 78513757), (133, 21842173), (257, 11303537), (259, 11216251), (703, 4132303), (1799, 1614791), (2297, 1264697), (4883, 594923), (4921, 590329), (9509, 305501), (16079, 180671), (34181, 84989), (43643, 66563)]