21109228

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{39679}}^1$

素因数の和:39709

約数の個数: 24

約数和(自身を含む): 44441600

約数和(自身を除く): 23332372

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 39679, 79358, 158716, 277753, 555506, 753901, 1111012, 1507802, 3015604, 5277307, 10554614, 21109228]

約数ペア:

[(1, 21109228), (2, 10554614), (4, 5277307), (7, 3015604), (14, 1507802), (19, 1111012), (28, 753901), (38, 555506), (76, 277753), (133, 158716), (266, 79358), (532, 39679)]