20995893

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{617}}^1$

素因数の和:841

約数の個数: 24

約数和(自身を含む): 32136000

約数和(自身を除く): 11140107

約数列:

[1, 3, 9, 19, 57, 171, 199, 597, 617, 1791, 1851, 3781, 5553, 11343, 11723, 34029, 35169, 105507, 122783, 368349, 1105047, 2332877, 6998631, 20995893]

約数ペア:

[(1, 20995893), (3, 6998631), (9, 2332877), (19, 1105047), (57, 368349), (171, 122783), (199, 105507), (597, 35169), (617, 34029), (1791, 11723), (1851, 11343), (3781, 5553)]