20947587

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{653}}^1$

素因数の和:727

約数の個数: 24

約数和(自身を含む): 30518256

約数和(自身を除く): 9570669

約数列:

[1, 3, 17, 37, 51, 111, 289, 629, 653, 867, 1887, 1959, 10693, 11101, 24161, 32079, 33303, 72483, 188717, 410737, 566151, 1232211, 6982529, 20947587]

約数ペア:

[(1, 20947587), (3, 6982529), (17, 1232211), (37, 566151), (51, 410737), (111, 188717), (289, 72483), (629, 33303), (653, 32079), (867, 24161), (1887, 11101), (1959, 10693)]