18203409

素因数分解:

$3^2\times 7^1\times {\mathrm{283}}^1\times {\mathrm{1021}}^1$

素因数の和:1317

約数の個数: 24

約数和(自身を含む): 30185792

約数和(自身を除く): 11982383

約数列:

[1, 3, 7, 9, 21, 63, 283, 849, 1021, 1981, 2547, 3063, 5943, 7147, 9189, 17829, 21441, 64323, 288943, 866829, 2022601, 2600487, 6067803, 18203409]

約数ペア:

[(1, 18203409), (3, 6067803), (7, 2600487), (9, 2022601), (21, 866829), (63, 288943), (283, 64323), (849, 21441), (1021, 17829), (1981, 9189), (2547, 7147), (3063, 5943)]