28394391

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{1223}}^1$

素因数の和:1406

約数の個数: 16

約数和(自身を含む): 38776320

約数和(自身を除く): 10381929

約数列:

[1, 3, 71, 109, 213, 327, 1223, 3669, 7739, 23217, 86833, 133307, 260499, 399921, 9464797, 28394391]

約数ペア:

[(1, 28394391), (3, 9464797), (71, 399921), (109, 260499), (213, 133307), (327, 86833), (1223, 23217), (3669, 7739)]