21742826

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{29303}}^1$

素因数の和:29365

約数の個数: 16

約数和(自身を含む): 37977984

約数和(自身を除く): 16235158

約数列:

[1, 2, 7, 14, 53, 106, 371, 742, 29303, 58606, 205121, 410242, 1553059, 3106118, 10871413, 21742826]

約数ペア:

[(1, 21742826), (2, 10871413), (7, 3106118), (14, 1553059), (53, 410242), (106, 205121), (371, 58606), (742, 29303)]