21031396084

素因数分解:

$2^2\times {\mathrm{359}}^1\times {\mathrm{821}}^1\times {\mathrm{17839}}^1$

素因数の和:19023

約数の個数: 24

約数和(自身を含む): 36954489600

約数和(自身を除く): 15923093516

約数列:

[1, 2, 4, 359, 718, 821, 1436, 1642, 3284, 17839, 35678, 71356, 294739, 589478, 1178956, 6404201, 12808402, 14645819, 25616804, 29291638, 58583276, 5257849021, 10515698042, 21031396084]

約数ペア:

[(1, 21031396084), (2, 10515698042), (4, 5257849021), (359, 58583276), (718, 29291638), (821, 25616804), (1436, 14645819), (1642, 12808402), (3284, 6404201), (17839, 1178956), (35678, 589478), (71356, 294739)]