21724136

素因数分解:

$2^3\times 7^1\times {\mathrm{109}}^1\times {\mathrm{3559}}^1$

素因数の和:3681

約数の個数: 32

約数和(自身を含む): 46992000

約数和(自身を除く): 25267864

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 109, 218, 436, 763, 872, 1526, 3052, 3559, 6104, 7118, 14236, 24913, 28472, 49826, 99652, 199304, 387931, 775862, 1551724, 2715517, 3103448, 5431034, 10862068, 21724136]

約数ペア:

[(1, 21724136), (2, 10862068), (4, 5431034), (7, 3103448), (8, 2715517), (14, 1551724), (28, 775862), (56, 387931), (109, 199304), (218, 99652), (436, 49826), (763, 28472), (872, 24913), (1526, 14236), (3052, 7118), (3559, 6104)]