87221519

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{313}}^1$

素因数の和:396

約数の個数: 36

約数和(自身を含む): 114260832

約数和(自身を除く): 27039313

約数列:

[1, 7, 11, 47, 49, 77, 121, 313, 329, 517, 539, 847, 2191, 2303, 3443, 3619, 5687, 5929, 14711, 15337, 24101, 25333, 37873, 39809, 102977, 161821, 168707, 265111, 278663, 720839, 1132747, 1780031, 1855777, 7929229, 12460217, 87221519]

約数ペア:

[(1, 87221519), (7, 12460217), (11, 7929229), (47, 1855777), (49, 1780031), (77, 1132747), (121, 720839), (313, 278663), (329, 265111), (517, 168707), (539, 161821), (847, 102977), (2191, 39809), (2303, 37873), (3443, 25333), (3619, 24101), (5687, 15337), (5929, 14711)]