31531617

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 52835328

約数和(自身を除く): 21303711

約数列:

[1, 3, 9, 13, 17, 39, 51, 83, 117, 153, 191, 221, 249, 573, 663, 747, 1079, 1411, 1719, 1989, 2483, 3237, 3247, 4233, 7449, 9711, 9741, 12699, 15853, 18343, 22347, 29223, 42211, 47559, 55029, 126633, 142677, 165087, 206089, 269501, 379899, 618267, 808503, 1854801, 2425509, 3503513, 10510539, 31531617]

約数ペア:

[(1, 31531617), (3, 10510539), (9, 3503513), (13, 2425509), (17, 1854801), (39, 808503), (51, 618267), (83, 379899), (117, 269501), (153, 206089), (191, 165087), (221, 142677), (249, 126633), (573, 55029), (663, 47559), (747, 42211), (1079, 29223), (1411, 22347), (1719, 18343), (1989, 15853), (2483, 12699), (3237, 9741), (3247, 9711), (4233, 7449)]