20543679

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{547}}^1$

素因数の和:676

約数の個数: 32

約数和(自身を含む): 33143040

約数和(自身を除く): 12599361

約数列:

[1, 3, 9, 13, 27, 39, 107, 117, 321, 351, 547, 963, 1391, 1641, 2889, 4173, 4923, 7111, 12519, 14769, 21333, 37557, 58529, 63999, 175587, 191997, 526761, 760877, 1580283, 2282631, 6847893, 20543679]

約数ペア:

[(1, 20543679), (3, 6847893), (9, 2282631), (13, 1580283), (27, 760877), (39, 526761), (107, 191997), (117, 175587), (321, 63999), (351, 58529), (547, 37557), (963, 21333), (1391, 14769), (1641, 12519), (2889, 7111), (4173, 4923)]