20611257

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 30825600

約数和(自身を除く): 10214343

約数列:

[1, 3, 19, 29, 37, 57, 87, 111, 337, 551, 703, 1011, 1073, 1653, 2109, 3219, 6403, 9773, 12469, 19209, 20387, 29319, 37407, 61161, 185687, 236911, 361601, 557061, 710733, 1084803, 6870419, 20611257]

約数ペア:

[(1, 20611257), (3, 6870419), (19, 1084803), (29, 710733), (37, 557061), (57, 361601), (87, 236911), (111, 185687), (337, 61161), (551, 37407), (703, 29319), (1011, 20387), (1073, 19209), (1653, 12469), (2109, 9773), (3219, 6403)]