21267960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{3617}}^1$

素因数の和:3645

約数の個数: 96

約数和(自身を含む): 74241360

約数和(自身を除く): 52973400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 3617, 5880, 7234, 10851, 14468, 18085, 21702, 25319, 28936, 36170, 43404, 50638, 54255, 72340, 75957, 86808, 101276, 108510, 126595, 144680, 151914, 177233, 202552, 217020, 253190, 303828, 354466, 379785, 434040, 506380, 531699, 607656, 708932, 759570, 886165, 1012760, 1063398, 1417864, 1519140, 1772330, 2126796, 2658495, 3038280, 3544660, 4253592, 5316990, 7089320, 10633980, 21267960]

約数ペア:

[(1, 21267960), (2, 10633980), (3, 7089320), (4, 5316990), (5, 4253592), (6, 3544660), (7, 3038280), (8, 2658495), (10, 2126796), (12, 1772330), (14, 1519140), (15, 1417864), (20, 1063398), (21, 1012760), (24, 886165), (28, 759570), (30, 708932), (35, 607656), (40, 531699), (42, 506380), (49, 434040), (56, 379785), (60, 354466), (70, 303828), (84, 253190), (98, 217020), (105, 202552), (120, 177233), (140, 151914), (147, 144680), (168, 126595), (196, 108510), (210, 101276), (245, 86808), (280, 75957), (294, 72340), (392, 54255), (420, 50638), (490, 43404), (588, 36170), (735, 28936), (840, 25319), (980, 21702), (1176, 18085), (1470, 14468), (1960, 10851), (2940, 7234), (3617, 5880)]