247029279

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{577}}^1$

素因数の和:672

約数の個数: 64

約数和(自身を含む): 421708800

約数和(自身を除く): 174679521

約数列:

[1, 3, 7, 19, 21, 29, 37, 57, 87, 111, 133, 203, 259, 399, 551, 577, 609, 703, 777, 1073, 1653, 1731, 2109, 3219, 3857, 4039, 4921, 7511, 10963, 11571, 12117, 14763, 16733, 20387, 21349, 22533, 32889, 50199, 61161, 64047, 76741, 117131, 142709, 149443, 230223, 317927, 351393, 405631, 428127, 448329, 619121, 953781, 1216893, 1857363, 2225489, 2839417, 4333847, 6676467, 8518251, 11763299, 13001541, 35289897, 82343093, 247029279]

約数ペア:

[(1, 247029279), (3, 82343093), (7, 35289897), (19, 13001541), (21, 11763299), (29, 8518251), (37, 6676467), (57, 4333847), (87, 2839417), (111, 2225489), (133, 1857363), (203, 1216893), (259, 953781), (399, 619121), (551, 448329), (577, 428127), (609, 405631), (703, 351393), (777, 317927), (1073, 230223), (1653, 149443), (1731, 142709), (2109, 117131), (3219, 76741), (3857, 64047), (4039, 61161), (4921, 50199), (7511, 32889), (10963, 22533), (11571, 21349), (12117, 20387), (14763, 16733)]