20848455

素因数分解:

$3^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{397}}^1$

素因数の和:800

約数の個数: 32

約数和(自身を含む): 37252800

約数和(自身を除く): 16404345

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 389, 397, 1167, 1191, 1945, 1985, 3501, 3573, 5835, 5955, 10503, 10719, 17505, 17865, 52515, 53595, 154433, 463299, 772165, 1389897, 2316495, 4169691, 6949485, 20848455]

約数ペア:

[(1, 20848455), (3, 6949485), (5, 4169691), (9, 2316495), (15, 1389897), (27, 772165), (45, 463299), (135, 154433), (389, 53595), (397, 52515), (1167, 17865), (1191, 17505), (1945, 10719), (1985, 10503), (3501, 5955), (3573, 5835)]