21604245

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4817}}^1$

素因数の和:4861

約数の個数: 32

約数和(自身を含む): 38852352

約数和(自身を除く): 17248107

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4485, 4817, 14451, 24085, 62621, 72255, 110791, 187863, 313105, 332373, 553955, 939315, 1440283, 1661865, 4320849, 7201415, 21604245]

約数ペア:

[(1, 21604245), (3, 7201415), (5, 4320849), (13, 1661865), (15, 1440283), (23, 939315), (39, 553955), (65, 332373), (69, 313105), (115, 187863), (195, 110791), (299, 72255), (345, 62621), (897, 24085), (1495, 14451), (4485, 4817)]