21807292

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{1559}}^1$

素因数の和:1845

約数の個数: 24

約数和(自身を含む): 41277600

約数和(自身を除く): 19470308

約数列:

[1, 2, 4, 13, 26, 52, 269, 538, 1076, 1559, 3118, 3497, 6236, 6994, 13988, 20267, 40534, 81068, 419371, 838742, 1677484, 5451823, 10903646, 21807292]

約数ペア:

[(1, 21807292), (2, 10903646), (4, 5451823), (13, 1677484), (26, 838742), (52, 419371), (269, 81068), (538, 40534), (1076, 20267), (1559, 13988), (3118, 6994), (3497, 6236)]