20551563

素因数分解:

$3^4\times {\mathrm{349}}^1\times {\mathrm{727}}^1$

素因数の和:1088

約数の個数: 20

約数和(自身を含む): 30830800

約数和(自身を除く): 10279237

約数列:

[1, 3, 9, 27, 81, 349, 727, 1047, 2181, 3141, 6543, 9423, 19629, 28269, 58887, 253723, 761169, 2283507, 6850521, 20551563]

約数ペア:

[(1, 20551563), (3, 6850521), (9, 2283507), (27, 761169), (81, 253723), (349, 58887), (727, 28269), (1047, 19629), (2181, 9423), (3141, 6543)]