19970631

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{14503}}^1$

素因数の和:14532

約数の個数: 20

約数和(自身を含む): 31589712

約数和(自身を除く): 11619081

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 14503, 43509, 130527, 246551, 391581, 739653, 1174743, 2218959, 6656877, 19970631]

約数ペア:

[(1, 19970631), (3, 6656877), (9, 2218959), (17, 1174743), (27, 739653), (51, 391581), (81, 246551), (153, 130527), (459, 43509), (1377, 14503)]