28301013

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 48048000

約数和(自身を除く): 19746987

約数列:

[1, 3, 9, 13, 19, 29, 39, 57, 87, 117, 171, 247, 261, 377, 439, 551, 741, 1131, 1317, 1653, 2223, 3393, 3951, 4959, 5707, 7163, 8341, 12731, 17121, 21489, 25023, 38193, 51363, 64467, 75069, 108433, 114579, 165503, 241889, 325299, 496509, 725667, 975897, 1489527, 2177001, 3144557, 9433671, 28301013]

約数ペア:

[(1, 28301013), (3, 9433671), (9, 3144557), (13, 2177001), (19, 1489527), (29, 975897), (39, 725667), (57, 496509), (87, 325299), (117, 241889), (171, 165503), (247, 114579), (261, 108433), (377, 75069), (439, 64467), (551, 51363), (741, 38193), (1131, 25023), (1317, 21489), (1653, 17121), (2223, 12731), (3393, 8341), (3951, 7163), (4959, 5707)]