21000060

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:202

約数の個数: 144

約数和(自身を含む): 68796000

約数和(自身を除く): 47795940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 29, 30, 36, 45, 54, 58, 60, 81, 87, 90, 108, 116, 135, 145, 149, 162, 174, 180, 243, 261, 270, 290, 298, 324, 348, 405, 435, 447, 486, 522, 540, 580, 596, 745, 783, 810, 870, 894, 972, 1044, 1215, 1305, 1341, 1490, 1566, 1620, 1740, 1788, 2235, 2349, 2430, 2610, 2682, 2980, 3132, 3915, 4023, 4321, 4470, 4698, 4860, 5220, 5364, 6705, 7047, 7830, 8046, 8642, 8940, 9396, 11745, 12069, 12963, 13410, 14094, 15660, 16092, 17284, 20115, 21605, 23490, 24138, 25926, 26820, 28188, 35235, 36207, 38889, 40230, 43210, 46980, 48276, 51852, 60345, 64815, 70470, 72414, 77778, 80460, 86420, 116667, 120690, 129630, 140940, 144828, 155556, 181035, 194445, 233334, 241380, 259260, 350001, 362070, 388890, 466668, 583335, 700002, 724140, 777780, 1050003, 1166670, 1400004, 1750005, 2100006, 2333340, 3500010, 4200012, 5250015, 7000020, 10500030, 21000060]

約数ペア:

[(1, 21000060), (2, 10500030), (3, 7000020), (4, 5250015), (5, 4200012), (6, 3500010), (9, 2333340), (10, 2100006), (12, 1750005), (15, 1400004), (18, 1166670), (20, 1050003), (27, 777780), (29, 724140), (30, 700002), (36, 583335), (45, 466668), (54, 388890), (58, 362070), (60, 350001), (81, 259260), (87, 241380), (90, 233334), (108, 194445), (116, 181035), (135, 155556), (145, 144828), (149, 140940), (162, 129630), (174, 120690), (180, 116667), (243, 86420), (261, 80460), (270, 77778), (290, 72414), (298, 70470), (324, 64815), (348, 60345), (405, 51852), (435, 48276), (447, 46980), (486, 43210), (522, 40230), (540, 38889), (580, 36207), (596, 35235), (745, 28188), (783, 26820), (810, 25926), (870, 24138), (894, 23490), (972, 21605), (1044, 20115), (1215, 17284), (1305, 16092), (1341, 15660), (1490, 14094), (1566, 13410), (1620, 12963), (1740, 12069), (1788, 11745), (2235, 9396), (2349, 8940), (2430, 8642), (2610, 8046), (2682, 7830), (2980, 7047), (3132, 6705), (3915, 5364), (4023, 5220), (4321, 4860), (4470, 4698)]