20522223

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2791}}^1$

素因数の和:2859

約数の個数: 24

約数和(自身を含む): 31940480

約数和(自身を除く): 11418257

約数列:

[1, 3, 9, 19, 43, 57, 129, 171, 387, 817, 2451, 2791, 7353, 8373, 25119, 53029, 120013, 159087, 360039, 477261, 1080117, 2280247, 6840741, 20522223]

約数ペア:

[(1, 20522223), (3, 6840741), (9, 2280247), (19, 1080117), (43, 477261), (57, 360039), (129, 159087), (171, 120013), (387, 53029), (817, 25119), (2451, 8373), (2791, 7353)]