20561103

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1399}}^1$

素因数の和:1499

約数の個数: 24

約数和(自身を含む): 31449600

約数和(自身を除く): 10888497

約数列:

[1, 3, 9, 23, 69, 71, 207, 213, 639, 1399, 1633, 4197, 4899, 12591, 14697, 32177, 96531, 99329, 289593, 297987, 893961, 2284567, 6853701, 20561103]

約数ペア:

[(1, 20561103), (3, 6853701), (9, 2284567), (23, 893961), (69, 297987), (71, 289593), (207, 99329), (213, 96531), (639, 32177), (1399, 14697), (1633, 12591), (4197, 4899)]