21971085

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{18541}}^1$

素因数の和:18628

約数の個数: 16

約数和(自身を含む): 35600640

約数和(自身を除く): 13629555

約数列:

[1, 3, 5, 15, 79, 237, 395, 1185, 18541, 55623, 92705, 278115, 1464739, 4394217, 7323695, 21971085]

約数ペア:

[(1, 21971085), (3, 7323695), (5, 4394217), (15, 1464739), (79, 278115), (237, 92705), (395, 55623), (1185, 18541)]