20869893

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{397}}^1$

素因数の和:479

約数の個数: 40

約数和(自身を含む): 34673760

約数和(自身を除く): 13803867

約数列:

[1, 3, 9, 11, 27, 33, 59, 81, 99, 177, 297, 397, 531, 649, 891, 1191, 1593, 1947, 3573, 4367, 4779, 5841, 10719, 13101, 17523, 23423, 32157, 39303, 52569, 70269, 117909, 210807, 257653, 353727, 632421, 772959, 1897263, 2318877, 6956631, 20869893]

約数ペア:

[(1, 20869893), (3, 6956631), (9, 2318877), (11, 1897263), (27, 772959), (33, 632421), (59, 353727), (81, 257653), (99, 210807), (177, 117909), (297, 70269), (397, 52569), (531, 39303), (649, 32157), (891, 23423), (1191, 17523), (1593, 13101), (1947, 10719), (3573, 5841), (4367, 4779)]