21784260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1$

素因数の和:325

約数の個数: 96

約数和(自身を含む): 65197440

約数和(自身を除く): 43413180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 97, 114, 190, 194, 197, 228, 285, 291, 380, 388, 394, 485, 570, 582, 591, 788, 970, 985, 1140, 1164, 1182, 1455, 1843, 1940, 1970, 2364, 2910, 2955, 3686, 3743, 3940, 5529, 5820, 5910, 7372, 7486, 9215, 11058, 11229, 11820, 14972, 18430, 18715, 19109, 22116, 22458, 27645, 36860, 37430, 38218, 44916, 55290, 56145, 57327, 74860, 76436, 95545, 110580, 112290, 114654, 191090, 224580, 229308, 286635, 363071, 382180, 573270, 726142, 1089213, 1146540, 1452284, 1815355, 2178426, 3630710, 4356852, 5446065, 7261420, 10892130, 21784260]

約数ペア:

[(1, 21784260), (2, 10892130), (3, 7261420), (4, 5446065), (5, 4356852), (6, 3630710), (10, 2178426), (12, 1815355), (15, 1452284), (19, 1146540), (20, 1089213), (30, 726142), (38, 573270), (57, 382180), (60, 363071), (76, 286635), (95, 229308), (97, 224580), (114, 191090), (190, 114654), (194, 112290), (197, 110580), (228, 95545), (285, 76436), (291, 74860), (380, 57327), (388, 56145), (394, 55290), (485, 44916), (570, 38218), (582, 37430), (591, 36860), (788, 27645), (970, 22458), (985, 22116), (1140, 19109), (1164, 18715), (1182, 18430), (1455, 14972), (1843, 11820), (1940, 11229), (1970, 11058), (2364, 9215), (2910, 7486), (2955, 7372), (3686, 5910), (3743, 5820), (3940, 5529)]