21407177

素因数分解:

${\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{503}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 24167808

約数和(自身を除く): 2760631

約数列:

[1, 11, 53, 73, 503, 583, 803, 3869, 5533, 26659, 36719, 42559, 293249, 403909, 1946107, 21407177]

約数ペア:

[(1, 21407177), (11, 1946107), (53, 403909), (73, 293249), (503, 42559), (583, 36719), (803, 26659), (3869, 5533)]