21743001

素因数分解:

$3^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{1283}}^1$

素因数の和:1565

約数の個数: 24

約数和(自身を含む): 36054720

約数和(自身を除く): 14311719

約数列:

[1, 3, 7, 9, 21, 63, 269, 807, 1283, 1883, 2421, 3849, 5649, 8981, 11547, 16947, 26943, 80829, 345127, 1035381, 2415889, 3106143, 7247667, 21743001]

約数ペア:

[(1, 21743001), (3, 7247667), (7, 3106143), (9, 2415889), (21, 1035381), (63, 345127), (269, 80829), (807, 26943), (1283, 16947), (1883, 11547), (2421, 8981), (3849, 5649)]