21704764

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{15031}}^1$

素因数の和:15073

約数の個数: 18

約数和(自身を含む): 40090344

約数和(自身を除く): 18385580

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 15031, 30062, 60124, 285589, 571178, 1142356, 5426191, 10852382, 21704764]

約数ペア:

[(1, 21704764), (2, 10852382), (4, 5426191), (19, 1142356), (38, 571178), (76, 285589), (361, 60124), (722, 30062), (1444, 15031)]