21641319

素因数分解:

$3^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{1277}}^1$

素因数の和:1559

約数の個数: 24

約数和(自身を含む): 35886240

約数和(自身を除く): 14244921

約数列:

[1, 3, 7, 9, 21, 63, 269, 807, 1277, 1883, 2421, 3831, 5649, 8939, 11493, 16947, 26817, 80451, 343513, 1030539, 2404591, 3091617, 7213773, 21641319]

約数ペア:

[(1, 21641319), (3, 7213773), (7, 3091617), (9, 2404591), (21, 1030539), (63, 343513), (269, 80451), (807, 26817), (1277, 16947), (1883, 11493), (2421, 8939), (3831, 5649)]