21040950

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{691}}^1$

素因数の和:742

約数の個数: 96

約数和(自身を含む): 61781760

約数和(自身を除く): 40740810

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 29, 30, 35, 42, 50, 58, 70, 75, 87, 105, 145, 150, 174, 175, 203, 210, 290, 350, 406, 435, 525, 609, 691, 725, 870, 1015, 1050, 1218, 1382, 1450, 2030, 2073, 2175, 3045, 3455, 4146, 4350, 4837, 5075, 6090, 6910, 9674, 10150, 10365, 14511, 15225, 17275, 20039, 20730, 24185, 29022, 30450, 34550, 40078, 48370, 51825, 60117, 72555, 100195, 103650, 120234, 120925, 140273, 145110, 200390, 241850, 280546, 300585, 362775, 420819, 500975, 601170, 701365, 725550, 841638, 1001950, 1402730, 1502925, 2104095, 3005850, 3506825, 4208190, 7013650, 10520475, 21040950]

約数ペア:

[(1, 21040950), (2, 10520475), (3, 7013650), (5, 4208190), (6, 3506825), (7, 3005850), (10, 2104095), (14, 1502925), (15, 1402730), (21, 1001950), (25, 841638), (29, 725550), (30, 701365), (35, 601170), (42, 500975), (50, 420819), (58, 362775), (70, 300585), (75, 280546), (87, 241850), (105, 200390), (145, 145110), (150, 140273), (174, 120925), (175, 120234), (203, 103650), (210, 100195), (290, 72555), (350, 60117), (406, 51825), (435, 48370), (525, 40078), (609, 34550), (691, 30450), (725, 29022), (870, 24185), (1015, 20730), (1050, 20039), (1218, 17275), (1382, 15225), (1450, 14511), (2030, 10365), (2073, 10150), (2175, 9674), (3045, 6910), (3455, 6090), (4146, 5075), (4350, 4837)]