2166905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:125

約数の個数: 32

約数和(自身を含む): 3102624

約数和(自身を除く): 935719

約数列:

[1, 5, 13, 17, 37, 53, 65, 85, 185, 221, 265, 481, 629, 689, 901, 1105, 1961, 2405, 3145, 3445, 4505, 8177, 9805, 11713, 25493, 33337, 40885, 58565, 127465, 166685, 433381, 2166905]

約数ペア:

[(1, 2166905), (5, 433381), (13, 166685), (17, 127465), (37, 58565), (53, 40885), (65, 33337), (85, 25493), (185, 11713), (221, 9805), (265, 8177), (481, 4505), (629, 3445), (689, 3145), (901, 2405), (1105, 1961)]