9780687

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8171}}^1$

素因数の和:8203

約数の個数: 24

約数和(自身を含む): 16997760

約数和(自身を除く): 7217073

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 8171, 24513, 57197, 73539, 155249, 171591, 465747, 514773, 1086743, 1397241, 3260229, 9780687]

約数ペア:

[(1, 9780687), (3, 3260229), (7, 1397241), (9, 1086743), (19, 514773), (21, 465747), (57, 171591), (63, 155249), (133, 73539), (171, 57197), (399, 24513), (1197, 8171)]