21681504

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{5791}}^1$

素因数の和:5820

約数の個数: 72

約数和(自身を含む): 66411072

約数和(自身を除く): 44729568

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 234, 288, 312, 416, 468, 624, 936, 1248, 1872, 3744, 5791, 11582, 17373, 23164, 34746, 46328, 52119, 69492, 75283, 92656, 104238, 138984, 150566, 185312, 208476, 225849, 277968, 301132, 416952, 451698, 555936, 602264, 677547, 833904, 903396, 1204528, 1355094, 1667808, 1806792, 2409056, 2710188, 3613584, 5420376, 7227168, 10840752, 21681504]

約数ペア:

[(1, 21681504), (2, 10840752), (3, 7227168), (4, 5420376), (6, 3613584), (8, 2710188), (9, 2409056), (12, 1806792), (13, 1667808), (16, 1355094), (18, 1204528), (24, 903396), (26, 833904), (32, 677547), (36, 602264), (39, 555936), (48, 451698), (52, 416952), (72, 301132), (78, 277968), (96, 225849), (104, 208476), (117, 185312), (144, 150566), (156, 138984), (208, 104238), (234, 92656), (288, 75283), (312, 69492), (416, 52119), (468, 46328), (624, 34746), (936, 23164), (1248, 17373), (1872, 11582), (3744, 5791)]