19873107

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:417

約数の個数: 40

約数和(自身を含む): 32186000

約数和(自身を除く): 12312893

約数列:

[1, 3, 9, 19, 27, 37, 57, 81, 111, 171, 333, 349, 513, 703, 999, 1047, 1539, 2109, 2997, 3141, 6327, 6631, 9423, 12913, 18981, 19893, 28269, 38739, 56943, 59679, 116217, 179037, 245347, 348651, 537111, 736041, 1045953, 2208123, 6624369, 19873107]

約数ペア:

[(1, 19873107), (3, 6624369), (9, 2208123), (19, 1045953), (27, 736041), (37, 537111), (57, 348651), (81, 245347), (111, 179037), (171, 116217), (333, 59679), (349, 56943), (513, 38739), (703, 28269), (999, 19893), (1047, 18981), (1539, 12913), (2109, 9423), (2997, 6631), (3141, 6327)]