1221555

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:147

約数の個数: 32

約数和(自身を含む): 2101248

約数和(自身を除く): 879693

約数列:

[1, 3, 5, 15, 31, 37, 71, 93, 111, 155, 185, 213, 355, 465, 555, 1065, 1147, 2201, 2627, 3441, 5735, 6603, 7881, 11005, 13135, 17205, 33015, 39405, 81437, 244311, 407185, 1221555]

約数ペア:

[(1, 1221555), (3, 407185), (5, 244311), (15, 81437), (31, 39405), (37, 33015), (71, 17205), (93, 13135), (111, 11005), (155, 7881), (185, 6603), (213, 5735), (355, 3441), (465, 2627), (555, 2201), (1065, 1147)]