21252360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:271

約数の個数: 128

約数和(自身を含む): 68428800

約数和(自身を除く): 47176440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 31, 40, 58, 60, 62, 87, 93, 116, 120, 124, 145, 155, 174, 186, 197, 232, 248, 290, 310, 348, 372, 394, 435, 465, 580, 591, 620, 696, 744, 788, 870, 899, 930, 985, 1160, 1182, 1240, 1576, 1740, 1798, 1860, 1970, 2364, 2697, 2955, 3480, 3596, 3720, 3940, 4495, 4728, 5394, 5713, 5910, 6107, 7192, 7880, 8990, 10788, 11426, 11820, 12214, 13485, 17139, 17980, 18321, 21576, 22852, 23640, 24428, 26970, 28565, 30535, 34278, 35960, 36642, 45704, 48856, 53940, 57130, 61070, 68556, 73284, 85695, 91605, 107880, 114260, 122140, 137112, 146568, 171390, 177103, 183210, 228520, 244280, 342780, 354206, 366420, 531309, 685560, 708412, 732840, 885515, 1062618, 1416824, 1771030, 2125236, 2656545, 3542060, 4250472, 5313090, 7084120, 10626180, 21252360]

約数ペア:

[(1, 21252360), (2, 10626180), (3, 7084120), (4, 5313090), (5, 4250472), (6, 3542060), (8, 2656545), (10, 2125236), (12, 1771030), (15, 1416824), (20, 1062618), (24, 885515), (29, 732840), (30, 708412), (31, 685560), (40, 531309), (58, 366420), (60, 354206), (62, 342780), (87, 244280), (93, 228520), (116, 183210), (120, 177103), (124, 171390), (145, 146568), (155, 137112), (174, 122140), (186, 114260), (197, 107880), (232, 91605), (248, 85695), (290, 73284), (310, 68556), (348, 61070), (372, 57130), (394, 53940), (435, 48856), (465, 45704), (580, 36642), (591, 35960), (620, 34278), (696, 30535), (744, 28565), (788, 26970), (870, 24428), (899, 23640), (930, 22852), (985, 21576), (1160, 18321), (1182, 17980), (1240, 17139), (1576, 13485), (1740, 12214), (1798, 11820), (1860, 11426), (1970, 10788), (2364, 8990), (2697, 7880), (2955, 7192), (3480, 6107), (3596, 5910), (3720, 5713), (3940, 5394), (4495, 4728)]