21036952

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{138401}}^1$

素因数の和:138426

約数の個数: 16

約数和(自身を含む): 41520600

約数和(自身を除く): 20483648

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 138401, 276802, 553604, 1107208, 2629619, 5259238, 10518476, 21036952]

約数ペア:

[(1, 21036952), (2, 10518476), (4, 5259238), (8, 2629619), (19, 1107208), (38, 553604), (76, 276802), (152, 138401)]