18856695

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 36288000

約数和(自身を除く): 17431305

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 59, 65, 143, 149, 165, 177, 195, 295, 429, 447, 649, 715, 745, 767, 885, 1639, 1937, 1947, 2145, 2235, 2301, 3245, 3835, 4917, 5811, 8195, 8437, 8791, 9685, 9735, 11505, 21307, 24585, 25311, 26373, 29055, 42185, 43955, 63921, 96701, 106535, 114283, 126555, 131865, 290103, 319605, 342849, 483505, 571415, 1257113, 1450515, 1714245, 3771339, 6285565, 18856695]

約数ペア:

[(1, 18856695), (3, 6285565), (5, 3771339), (11, 1714245), (13, 1450515), (15, 1257113), (33, 571415), (39, 483505), (55, 342849), (59, 319605), (65, 290103), (143, 131865), (149, 126555), (165, 114283), (177, 106535), (195, 96701), (295, 63921), (429, 43955), (447, 42185), (649, 29055), (715, 26373), (745, 25311), (767, 24585), (885, 21307), (1639, 11505), (1937, 9735), (1947, 9685), (2145, 8791), (2235, 8437), (2301, 8195), (3245, 5811), (3835, 4917)]