19926621

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{397}}^1$

素因数の和:443

約数の個数: 48

約数和(自身を含む): 34960320

約数和(自身を除く): 15033699

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 99, 117, 143, 169, 297, 351, 397, 429, 507, 1191, 1287, 1521, 1859, 3573, 3861, 4367, 4563, 5161, 5577, 10719, 13101, 15483, 16731, 39303, 46449, 50193, 56771, 67093, 117909, 139347, 170313, 201279, 510939, 603837, 738023, 1532817, 1811511, 2214069, 6642207, 19926621]

約数ペア:

[(1, 19926621), (3, 6642207), (9, 2214069), (11, 1811511), (13, 1532817), (27, 738023), (33, 603837), (39, 510939), (99, 201279), (117, 170313), (143, 139347), (169, 117909), (297, 67093), (351, 56771), (397, 50193), (429, 46449), (507, 39303), (1191, 16731), (1287, 15483), (1521, 13101), (1859, 10719), (3573, 5577), (3861, 5161), (4367, 4563)]