28016001

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{359}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 47174400

約数和(自身を除く): 19158399

約数列:

[1, 3, 9, 13, 23, 29, 39, 69, 87, 117, 207, 261, 299, 359, 377, 667, 897, 1077, 1131, 2001, 2691, 3231, 3393, 4667, 6003, 8257, 8671, 10411, 14001, 24771, 26013, 31233, 42003, 74313, 78039, 93699, 107341, 135343, 239453, 322023, 406029, 718359, 966069, 1218087, 2155077, 3112889, 9338667, 28016001]

約数ペア:

[(1, 28016001), (3, 9338667), (9, 3112889), (13, 2155077), (23, 1218087), (29, 966069), (39, 718359), (69, 406029), (87, 322023), (117, 239453), (207, 135343), (261, 107341), (299, 93699), (359, 78039), (377, 74313), (667, 42003), (897, 31233), (1077, 26013), (1131, 24771), (2001, 14001), (2691, 10411), (3231, 8671), (3393, 8257), (4667, 6003)]