77988651

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{271}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 115519488

約数和(自身を除く): 37530837

約数列:

[1, 3, 13, 39, 47, 141, 157, 271, 471, 611, 813, 1833, 2041, 3523, 6123, 7379, 10569, 12737, 22137, 38211, 42547, 95927, 127641, 165581, 287781, 496743, 553111, 1659333, 1999709, 5999127, 25996217, 77988651]

約数ペア:

[(1, 77988651), (3, 25996217), (13, 5999127), (39, 1999709), (47, 1659333), (141, 553111), (157, 496743), (271, 287781), (471, 165581), (611, 127641), (813, 95927), (1833, 42547), (2041, 38211), (3523, 22137), (6123, 12737), (7379, 10569)]