21679326

素因数分解:

$2^1\times 3^4\times {\mathrm{163}}^1\times {\mathrm{821}}^1$

素因数の和:998

約数の個数: 40

約数和(自身を含む): 48935304

約数和(自身を除く): 27255978

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 163, 326, 489, 821, 978, 1467, 1642, 2463, 2934, 4401, 4926, 7389, 8802, 13203, 14778, 22167, 26406, 44334, 66501, 133002, 133823, 267646, 401469, 802938, 1204407, 2408814, 3613221, 7226442, 10839663, 21679326]

約数ペア:

[(1, 21679326), (2, 10839663), (3, 7226442), (6, 3613221), (9, 2408814), (18, 1204407), (27, 802938), (54, 401469), (81, 267646), (162, 133823), (163, 133002), (326, 66501), (489, 44334), (821, 26406), (978, 22167), (1467, 14778), (1642, 13203), (2463, 8802), (2934, 7389), (4401, 4926)]