21000736477

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{464197}}^1$

素因数の和:464508

約数の個数: 16

約数和(自身を含む): 25133536512

約数和(自身を除く): 4132800035

約数列:

[1, 7, 23, 161, 281, 1967, 6463, 45241, 464197, 3249379, 10676531, 74735717, 130439357, 913075499, 3000105211, 21000736477]

約数ペア:

[(1, 21000736477), (7, 3000105211), (23, 913075499), (161, 130439357), (281, 74735717), (1967, 10676531), (6463, 3249379), (45241, 464197)]