81723681

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1483}}^1$

素因数の和:1662

約数の個数: 32

約数和(自身を含む): 131304320

約数和(自身を除く): 49580639

約数列:

[1, 3, 9, 13, 27, 39, 117, 157, 351, 471, 1413, 1483, 2041, 4239, 4449, 6123, 13347, 18369, 19279, 40041, 55107, 57837, 173511, 232831, 520533, 698493, 2095479, 3026803, 6286437, 9080409, 27241227, 81723681]

約数ペア:

[(1, 81723681), (3, 27241227), (9, 9080409), (13, 6286437), (27, 3026803), (39, 2095479), (117, 698493), (157, 520533), (351, 232831), (471, 173511), (1413, 57837), (1483, 55107), (2041, 40041), (4239, 19279), (4449, 18369), (6123, 13347)]