21270900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^2\times {\mathrm{1447}}^1$

素因数の和:1478

約数の個数: 108

約数和(自身を含む): 71641248

約数和(自身を除く): 50370348

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 49, 50, 60, 70, 75, 84, 98, 100, 105, 140, 147, 150, 175, 196, 210, 245, 294, 300, 350, 420, 490, 525, 588, 700, 735, 980, 1050, 1225, 1447, 1470, 2100, 2450, 2894, 2940, 3675, 4341, 4900, 5788, 7235, 7350, 8682, 10129, 14470, 14700, 17364, 20258, 21705, 28940, 30387, 36175, 40516, 43410, 50645, 60774, 70903, 72350, 86820, 101290, 108525, 121548, 141806, 144700, 151935, 202580, 212709, 217050, 253225, 283612, 303870, 354515, 425418, 434100, 506450, 607740, 709030, 759675, 850836, 1012900, 1063545, 1418060, 1519350, 1772575, 2127090, 3038700, 3545150, 4254180, 5317725, 7090300, 10635450, 21270900]

約数ペア:

[(1, 21270900), (2, 10635450), (3, 7090300), (4, 5317725), (5, 4254180), (6, 3545150), (7, 3038700), (10, 2127090), (12, 1772575), (14, 1519350), (15, 1418060), (20, 1063545), (21, 1012900), (25, 850836), (28, 759675), (30, 709030), (35, 607740), (42, 506450), (49, 434100), (50, 425418), (60, 354515), (70, 303870), (75, 283612), (84, 253225), (98, 217050), (100, 212709), (105, 202580), (140, 151935), (147, 144700), (150, 141806), (175, 121548), (196, 108525), (210, 101290), (245, 86820), (294, 72350), (300, 70903), (350, 60774), (420, 50645), (490, 43410), (525, 40516), (588, 36175), (700, 30387), (735, 28940), (980, 21705), (1050, 20258), (1225, 17364), (1447, 14700), (1470, 14470), (2100, 10129), (2450, 8682), (2894, 7350), (2940, 7235), (3675, 5788), (4341, 4900)]