78287139

素因数分解:

$3^2\times 7^1\times {\mathrm{283}}^1\times {\mathrm{4391}}^1$

素因数の和:4687

約数の個数: 24

約数和(自身を含む): 129722112

約数和(自身を除く): 51434973

約数列:

[1, 3, 7, 9, 21, 63, 283, 849, 1981, 2547, 4391, 5943, 13173, 17829, 30737, 39519, 92211, 276633, 1242653, 3727959, 8698571, 11183877, 26095713, 78287139]

約数ペア:

[(1, 78287139), (3, 26095713), (7, 11183877), (9, 8698571), (21, 3727959), (63, 1242653), (283, 276633), (849, 92211), (1981, 39519), (2547, 30737), (4391, 17829), (5943, 13173)]