20484621

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{613}}^1$

素因数の和:745

約数の個数: 24

約数和(自身を含む): 30650880

約数和(自身を除く): 10166259

約数列:

[1, 3, 9, 47, 79, 141, 237, 423, 613, 711, 1839, 3713, 5517, 11139, 28811, 33417, 48427, 86433, 145281, 259299, 435843, 2276069, 6828207, 20484621]

約数ペア:

[(1, 20484621), (3, 6828207), (9, 2276069), (47, 435843), (79, 259299), (141, 145281), (237, 86433), (423, 48427), (613, 33417), (711, 28811), (1839, 11139), (3713, 5517)]