21214039

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{2011}}^1$

素因数の和:2166

約数の個数: 16

約数和(自身を含む): 26654976

約数和(自身を除く): 5440937

約数列:

[1, 7, 11, 77, 137, 959, 1507, 2011, 10549, 14077, 22121, 154847, 275507, 1928549, 3030577, 21214039]

約数ペア:

[(1, 21214039), (7, 3030577), (11, 1928549), (77, 275507), (137, 154847), (959, 22121), (1507, 14077), (2011, 10549)]