17761221

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{773}}^1$

素因数の和:842

約数の個数: 32

約数和(自身を含む): 28235520

約数和(自身を除く): 10474299

約数列:

[1, 3, 9, 23, 27, 37, 69, 111, 207, 333, 621, 773, 851, 999, 2319, 2553, 6957, 7659, 17779, 20871, 22977, 28601, 53337, 85803, 160011, 257409, 480033, 657823, 772227, 1973469, 5920407, 17761221]

約数ペア:

[(1, 17761221), (3, 5920407), (9, 1973469), (23, 772227), (27, 657823), (37, 480033), (69, 257409), (111, 160011), (207, 85803), (333, 53337), (621, 28601), (773, 22977), (851, 20871), (999, 17779), (2319, 7659), (2553, 6957)]