21279024

素因数分解:

$2^4\times 3^5\times {\mathrm{13}}^1\times {\mathrm{421}}^1$

素因数の和:457

約数の個数: 120

約数和(自身を含む): 66665872

約数和(自身を除く): 45386848

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 36, 39, 48, 52, 54, 72, 78, 81, 104, 108, 117, 144, 156, 162, 208, 216, 234, 243, 312, 324, 351, 421, 432, 468, 486, 624, 648, 702, 842, 936, 972, 1053, 1263, 1296, 1404, 1684, 1872, 1944, 2106, 2526, 2808, 3159, 3368, 3789, 3888, 4212, 5052, 5473, 5616, 6318, 6736, 7578, 8424, 10104, 10946, 11367, 12636, 15156, 16419, 16848, 20208, 21892, 22734, 25272, 30312, 32838, 34101, 43784, 45468, 49257, 50544, 60624, 65676, 68202, 87568, 90936, 98514, 102303, 131352, 136404, 147771, 181872, 197028, 204606, 262704, 272808, 295542, 394056, 409212, 443313, 545616, 591084, 788112, 818424, 886626, 1182168, 1329939, 1636848, 1773252, 2364336, 2659878, 3546504, 5319756, 7093008, 10639512, 21279024]

約数ペア:

[(1, 21279024), (2, 10639512), (3, 7093008), (4, 5319756), (6, 3546504), (8, 2659878), (9, 2364336), (12, 1773252), (13, 1636848), (16, 1329939), (18, 1182168), (24, 886626), (26, 818424), (27, 788112), (36, 591084), (39, 545616), (48, 443313), (52, 409212), (54, 394056), (72, 295542), (78, 272808), (81, 262704), (104, 204606), (108, 197028), (117, 181872), (144, 147771), (156, 136404), (162, 131352), (208, 102303), (216, 98514), (234, 90936), (243, 87568), (312, 68202), (324, 65676), (351, 60624), (421, 50544), (432, 49257), (468, 45468), (486, 43784), (624, 34101), (648, 32838), (702, 30312), (842, 25272), (936, 22734), (972, 21892), (1053, 20208), (1263, 16848), (1296, 16419), (1404, 15156), (1684, 12636), (1872, 11367), (1944, 10946), (2106, 10104), (2526, 8424), (2808, 7578), (3159, 6736), (3368, 6318), (3789, 5616), (3888, 5473), (4212, 5052)]