20464389

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{491}}^1$

素因数の和:929

約数の個数: 24

約数和(自身を含む): 32389344

約数和(自身を除く): 11924955

約数列:

[1, 3, 9, 11, 33, 99, 421, 491, 1263, 1473, 3789, 4419, 4631, 5401, 13893, 16203, 41679, 48609, 206711, 620133, 1860399, 2273821, 6821463, 20464389]

約数ペア:

[(1, 20464389), (3, 6821463), (9, 2273821), (11, 1860399), (33, 620133), (99, 206711), (421, 48609), (491, 41679), (1263, 16203), (1473, 13893), (3789, 5401), (4419, 4631)]