291220839

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{39509}}^1$

素因数の和:39541

約数の個数: 40

約数和(自身を含む): 535439520

約数和(自身を除く): 244218681

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 273, 351, 567, 819, 1053, 2457, 7371, 39509, 118527, 276563, 355581, 513617, 829689, 1066743, 1540851, 2489067, 3200229, 3595319, 4622553, 7467201, 10785957, 13867659, 22401603, 32357871, 41602977, 97073613, 291220839]

約数ペア:

[(1, 291220839), (3, 97073613), (7, 41602977), (9, 32357871), (13, 22401603), (21, 13867659), (27, 10785957), (39, 7467201), (63, 4622553), (81, 3595319), (91, 3200229), (117, 2489067), (189, 1540851), (273, 1066743), (351, 829689), (567, 513617), (819, 355581), (1053, 276563), (2457, 118527), (7371, 39509)]