21404523

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{5021}}^1$

素因数の和:5067

約数の個数: 24

約数和(自身を含む): 34350480

約数和(自身を除く): 12945957

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 609, 1421, 4263, 5021, 15063, 35147, 105441, 145609, 246029, 436827, 738087, 1019263, 3057789, 7134841, 21404523]

約数ペア:

[(1, 21404523), (3, 7134841), (7, 3057789), (21, 1019263), (29, 738087), (49, 436827), (87, 246029), (147, 145609), (203, 105441), (609, 35147), (1421, 15063), (4263, 5021)]