28918513

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 35562240

約数和(自身を除く): 6643727

約数列:

[1, 13, 17, 19, 71, 97, 221, 247, 323, 923, 1207, 1261, 1349, 1649, 1843, 4199, 6887, 15691, 17537, 21437, 22933, 23959, 31331, 89531, 117079, 130853, 298129, 407303, 1522027, 1701089, 2224501, 28918513]

約数ペア:

[(1, 28918513), (13, 2224501), (17, 1701089), (19, 1522027), (71, 407303), (97, 298129), (221, 130853), (247, 117079), (323, 89531), (923, 31331), (1207, 23959), (1261, 22933), (1349, 21437), (1649, 17537), (1843, 15691), (4199, 6887)]