20818833

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13963}}^1$

素因数の和:14044

約数の個数: 16

約数和(自身を含む): 32173056

約数和(自身を除く): 11354223

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 13963, 41889, 97741, 293223, 991373, 2974119, 6939611, 20818833]

約数ペア:

[(1, 20818833), (3, 6939611), (7, 2974119), (21, 991373), (71, 293223), (213, 97741), (497, 41889), (1491, 13963)]