21305430

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{907}}^1$

素因数の和:955

約数の個数: 80

約数和(自身を含む): 59328720

約数和(自身を除く): 38023290

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 45, 54, 58, 81, 87, 90, 135, 145, 162, 174, 261, 270, 290, 405, 435, 522, 783, 810, 870, 907, 1305, 1566, 1814, 2349, 2610, 2721, 3915, 4535, 4698, 5442, 7830, 8163, 9070, 11745, 13605, 16326, 23490, 24489, 26303, 27210, 40815, 48978, 52606, 73467, 78909, 81630, 122445, 131515, 146934, 157818, 236727, 244890, 263030, 367335, 394545, 473454, 710181, 734670, 789090, 1183635, 1420362, 2130543, 2367270, 3550905, 4261086, 7101810, 10652715, 21305430]

約数ペア:

[(1, 21305430), (2, 10652715), (3, 7101810), (5, 4261086), (6, 3550905), (9, 2367270), (10, 2130543), (15, 1420362), (18, 1183635), (27, 789090), (29, 734670), (30, 710181), (45, 473454), (54, 394545), (58, 367335), (81, 263030), (87, 244890), (90, 236727), (135, 157818), (145, 146934), (162, 131515), (174, 122445), (261, 81630), (270, 78909), (290, 73467), (405, 52606), (435, 48978), (522, 40815), (783, 27210), (810, 26303), (870, 24489), (907, 23490), (1305, 16326), (1566, 13605), (1814, 11745), (2349, 9070), (2610, 8163), (2721, 7830), (3915, 5442), (4535, 4698)]