81906657

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 133569408

約数和(自身を除く): 51662751

約数列:

[1, 3, 7, 21, 23, 69, 73, 101, 161, 219, 303, 483, 511, 529, 707, 1533, 1587, 1679, 2121, 2323, 3703, 5037, 6969, 7373, 11109, 11753, 16261, 22119, 35259, 38617, 48783, 51611, 53429, 115851, 154833, 160287, 169579, 270319, 374003, 508737, 810957, 1122009, 1187053, 3561159, 3900317, 11700951, 27302219, 81906657]

約数ペア:

[(1, 81906657), (3, 27302219), (7, 11700951), (21, 3900317), (23, 3561159), (69, 1187053), (73, 1122009), (101, 810957), (161, 508737), (219, 374003), (303, 270319), (483, 169579), (511, 160287), (529, 154833), (707, 115851), (1533, 53429), (1587, 51611), (1679, 48783), (2121, 38617), (2323, 35259), (3703, 22119), (5037, 16261), (6969, 11753), (7373, 11109)]