21473550

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1$

素因数の和:443

約数の個数: 144

約数和(自身を含む): 69986592

約数和(自身を除く): 48513042

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 21, 25, 30, 34, 35, 42, 45, 50, 51, 63, 70, 75, 85, 90, 102, 105, 119, 126, 150, 153, 170, 175, 210, 225, 238, 255, 306, 315, 350, 357, 401, 425, 450, 510, 525, 595, 630, 714, 765, 802, 850, 1050, 1071, 1190, 1203, 1275, 1530, 1575, 1785, 2005, 2142, 2406, 2550, 2807, 2975, 3150, 3570, 3609, 3825, 4010, 5355, 5614, 5950, 6015, 6817, 7218, 7650, 8421, 8925, 10025, 10710, 12030, 13634, 14035, 16842, 17850, 18045, 20050, 20451, 25263, 26775, 28070, 30075, 34085, 36090, 40902, 42105, 47719, 50526, 53550, 60150, 61353, 68170, 70175, 84210, 90225, 95438, 102255, 122706, 126315, 140350, 143157, 170425, 180450, 204510, 210525, 238595, 252630, 286314, 306765, 340850, 421050, 429471, 477190, 511275, 613530, 631575, 715785, 858942, 1022550, 1192975, 1263150, 1431570, 1533825, 2147355, 2385950, 3067650, 3578925, 4294710, 7157850, 10736775, 21473550]

約数ペア:

[(1, 21473550), (2, 10736775), (3, 7157850), (5, 4294710), (6, 3578925), (7, 3067650), (9, 2385950), (10, 2147355), (14, 1533825), (15, 1431570), (17, 1263150), (18, 1192975), (21, 1022550), (25, 858942), (30, 715785), (34, 631575), (35, 613530), (42, 511275), (45, 477190), (50, 429471), (51, 421050), (63, 340850), (70, 306765), (75, 286314), (85, 252630), (90, 238595), (102, 210525), (105, 204510), (119, 180450), (126, 170425), (150, 143157), (153, 140350), (170, 126315), (175, 122706), (210, 102255), (225, 95438), (238, 90225), (255, 84210), (306, 70175), (315, 68170), (350, 61353), (357, 60150), (401, 53550), (425, 50526), (450, 47719), (510, 42105), (525, 40902), (595, 36090), (630, 34085), (714, 30075), (765, 28070), (802, 26775), (850, 25263), (1050, 20451), (1071, 20050), (1190, 18045), (1203, 17850), (1275, 16842), (1530, 14035), (1575, 13634), (1785, 12030), (2005, 10710), (2142, 10025), (2406, 8925), (2550, 8421), (2807, 7650), (2975, 7218), (3150, 6817), (3570, 6015), (3609, 5950), (3825, 5614), (4010, 5355)]