21301511

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{4129}}^1$

素因数の和:4214

約数の個数: 16

約数和(自身を含む): 26960640

約数和(自身を除く): 5659129

約数列:

[1, 7, 11, 67, 77, 469, 737, 4129, 5159, 28903, 45419, 276643, 317933, 1936501, 3043073, 21301511]

約数ペア:

[(1, 21301511), (7, 3043073), (11, 1936501), (67, 317933), (77, 276643), (469, 45419), (737, 28903), (4129, 5159)]