18901916

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{429589}}^1$

素因数の和:429604

約数の個数: 12

約数和(自身を含む): 36085560

約数和(自身を除く): 17183644

約数列:

[1, 2, 4, 11, 22, 44, 429589, 859178, 1718356, 4725479, 9450958, 18901916]

約数ペア:

[(1, 18901916), (2, 9450958), (4, 4725479), (11, 1718356), (22, 859178), (44, 429589)]