21627567

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:114

約数の個数: 80

約数和(自身を含む): 39029760

約数和(自身を除く): 17402193

約数列:

[1, 3, 9, 13, 19, 23, 27, 39, 47, 57, 69, 81, 117, 141, 171, 207, 247, 299, 351, 423, 437, 513, 611, 621, 741, 893, 897, 1053, 1081, 1269, 1311, 1539, 1833, 1863, 2223, 2679, 2691, 3243, 3807, 3933, 5499, 5681, 6669, 8037, 8073, 9729, 11609, 11799, 14053, 16497, 17043, 20007, 20539, 24111, 24219, 29187, 34827, 35397, 42159, 49491, 51129, 61617, 72333, 87561, 104481, 126477, 153387, 184851, 267007, 313443, 379431, 460161, 554553, 801021, 940329, 1138293, 1663659, 2403063, 7209189, 21627567]

約数ペア:

[(1, 21627567), (3, 7209189), (9, 2403063), (13, 1663659), (19, 1138293), (23, 940329), (27, 801021), (39, 554553), (47, 460161), (57, 379431), (69, 313443), (81, 267007), (117, 184851), (141, 153387), (171, 126477), (207, 104481), (247, 87561), (299, 72333), (351, 61617), (423, 51129), (437, 49491), (513, 42159), (611, 35397), (621, 34827), (741, 29187), (893, 24219), (897, 24111), (1053, 20539), (1081, 20007), (1269, 17043), (1311, 16497), (1539, 14053), (1833, 11799), (1863, 11609), (2223, 9729), (2679, 8073), (2691, 8037), (3243, 6669), (3807, 5681), (3933, 5499)]