15661965

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4127}}^1$

素因数の和:4169

約数の個数: 32

約数和(自身を含む): 28532736

約数和(自身を除く): 12870771

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 165, 253, 345, 759, 1265, 3795, 4127, 12381, 20635, 45397, 61905, 94921, 136191, 226985, 284763, 474605, 680955, 1044131, 1423815, 3132393, 5220655, 15661965]

約数ペア:

[(1, 15661965), (3, 5220655), (5, 3132393), (11, 1423815), (15, 1044131), (23, 680955), (33, 474605), (55, 284763), (69, 226985), (115, 136191), (165, 94921), (253, 61905), (345, 45397), (759, 20635), (1265, 12381), (3795, 4127)]