20869828

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{39229}}^1$

素因数の和:39259

約数の個数: 24

約数和(自身を含む): 43937600

約数和(自身を除く): 23067772

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 39229, 78458, 156916, 274603, 549206, 745351, 1098412, 1490702, 2981404, 5217457, 10434914, 20869828]

約数ペア:

[(1, 20869828), (2, 10434914), (4, 5217457), (7, 2981404), (14, 1490702), (19, 1098412), (28, 745351), (38, 549206), (76, 274603), (133, 156916), (266, 78458), (532, 39229)]