18590877

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{587}}^1$

素因数の和:639

約数の個数: 40

約数和(自身を含む): 30735936

約数和(自身を除く): 12145059

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 81, 153, 207, 391, 459, 587, 621, 1173, 1377, 1761, 1863, 3519, 5283, 9979, 10557, 13501, 15849, 29937, 31671, 40503, 47547, 89811, 121509, 229517, 269433, 364527, 688551, 808299, 1093581, 2065653, 6196959, 18590877]

約数ペア:

[(1, 18590877), (3, 6196959), (9, 2065653), (17, 1093581), (23, 808299), (27, 688551), (51, 364527), (69, 269433), (81, 229517), (153, 121509), (207, 89811), (391, 47547), (459, 40503), (587, 31671), (621, 29937), (1173, 15849), (1377, 13501), (1761, 10557), (1863, 9979), (3519, 5283)]