16397865

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 31352256

約数和(自身を除く): 14954391

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 157, 165, 211, 471, 495, 633, 785, 1055, 1413, 1727, 1899, 2321, 2355, 3165, 5181, 6963, 7065, 8635, 9495, 11605, 15543, 20889, 25905, 33127, 34815, 77715, 99381, 104445, 165635, 298143, 364397, 496905, 1093191, 1490715, 1821985, 3279573, 5465955, 16397865]

約数ペア:

[(1, 16397865), (3, 5465955), (5, 3279573), (9, 1821985), (11, 1490715), (15, 1093191), (33, 496905), (45, 364397), (55, 298143), (99, 165635), (157, 104445), (165, 99381), (211, 77715), (471, 34815), (495, 33127), (633, 25905), (785, 20889), (1055, 15543), (1413, 11605), (1727, 9495), (1899, 8635), (2321, 7065), (2355, 6963), (3165, 5181)]