20819799

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2311}}^1$

素因数の和:2348

約数の個数: 48

約数和(自身を含む): 40395264

約数和(自身を除く): 19575465

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 63, 77, 91, 99, 117, 143, 231, 273, 429, 693, 819, 1001, 1287, 2311, 3003, 6933, 9009, 16177, 20799, 25421, 30043, 48531, 76263, 90129, 145593, 177947, 210301, 228789, 270387, 330473, 533841, 630903, 991419, 1601523, 1892709, 2313311, 2974257, 6939933, 20819799]

約数ペア:

[(1, 20819799), (3, 6939933), (7, 2974257), (9, 2313311), (11, 1892709), (13, 1601523), (21, 991419), (33, 630903), (39, 533841), (63, 330473), (77, 270387), (91, 228789), (99, 210301), (117, 177947), (143, 145593), (231, 90129), (273, 76263), (429, 48531), (693, 30043), (819, 25421), (1001, 20799), (1287, 16177), (2311, 9009), (3003, 6933)]