20852901

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{173}}^1\times {\mathrm{227}}^1$

素因数の和:465

約数の個数: 24

約数和(自身を含む): 30944160

約数和(自身を除く): 10091259

約数列:

[1, 3, 9, 59, 173, 177, 227, 519, 531, 681, 1557, 2043, 10207, 13393, 30621, 39271, 40179, 91863, 117813, 120537, 353439, 2316989, 6950967, 20852901]

約数ペア:

[(1, 20852901), (3, 6950967), (9, 2316989), (59, 353439), (173, 120537), (177, 117813), (227, 91863), (519, 40179), (531, 39271), (681, 30621), (1557, 13393), (2043, 10207)]