19907732

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{1231}}^1$

素因数の和:1559

約数の個数: 24

約数和(自身を含む): 37669632

約数和(自身を除く): 17761900

約数列:

[1, 2, 4, 13, 26, 52, 311, 622, 1231, 1244, 2462, 4043, 4924, 8086, 16003, 16172, 32006, 64012, 382841, 765682, 1531364, 4976933, 9953866, 19907732]

約数ペア:

[(1, 19907732), (2, 9953866), (4, 4976933), (13, 1531364), (26, 765682), (52, 382841), (311, 64012), (622, 32006), (1231, 16172), (1244, 16003), (2462, 8086), (4043, 4924)]