21480723

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{3557}}^1$

素因数の和:3635

約数の個数: 24

約数和(自身を含む): 34412976

約数和(自身を除く): 12932253

約数列:

[1, 3, 9, 11, 33, 61, 99, 183, 549, 671, 2013, 3557, 6039, 10671, 32013, 39127, 117381, 216977, 352143, 650931, 1952793, 2386747, 7160241, 21480723]

約数ペア:

[(1, 21480723), (3, 7160241), (9, 2386747), (11, 1952793), (33, 650931), (61, 352143), (99, 216977), (183, 117381), (549, 39127), (671, 32013), (2013, 10671), (3557, 6039)]