19883799

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{821}}^1$

素因数の和:869

約数の個数: 40

約数和(自身を含む): 33419232

約数和(自身を除く): 13535433

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 81, 117, 207, 299, 351, 621, 821, 897, 1053, 1863, 2463, 2691, 7389, 8073, 10673, 18883, 22167, 24219, 32019, 56649, 66501, 96057, 169947, 245479, 288171, 509841, 736437, 864513, 1529523, 2209311, 6627933, 19883799]

約数ペア:

[(1, 19883799), (3, 6627933), (9, 2209311), (13, 1529523), (23, 864513), (27, 736437), (39, 509841), (69, 288171), (81, 245479), (117, 169947), (207, 96057), (299, 66501), (351, 56649), (621, 32019), (821, 24219), (897, 22167), (1053, 18883), (1863, 10673), (2463, 8073), (2691, 7389)]