21393519

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{44293}}^1$

素因数の和:44326

約数の個数: 16

約数和(自身を含む): 34017792

約数和(自身を除く): 12624273

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 44293, 132879, 310051, 930153, 1018739, 3056217, 7131173, 21393519]

約数ペア:

[(1, 21393519), (3, 7131173), (7, 3056217), (21, 1018739), (23, 930153), (69, 310051), (161, 132879), (483, 44293)]