21611865

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{130981}}^1$

素因数の和:131000

約数の個数: 16

約数和(自身を含む): 37722816

約数和(自身を除く): 16110951

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 130981, 392943, 654905, 1440791, 1964715, 4322373, 7203955, 21611865]

約数ペア:

[(1, 21611865), (3, 7203955), (5, 4322373), (11, 1964715), (15, 1440791), (33, 654905), (55, 392943), (165, 130981)]