21413484

素因数分解:

$2^2\times 3^4\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:141

約数の個数: 120

約数和(自身を含む): 60374160

約数和(自身を除く): 38960676

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 29, 36, 43, 53, 54, 58, 81, 86, 87, 106, 108, 116, 129, 159, 162, 172, 174, 212, 258, 261, 318, 324, 348, 387, 477, 516, 522, 636, 774, 783, 954, 1044, 1161, 1247, 1431, 1537, 1548, 1566, 1908, 2279, 2322, 2349, 2494, 2862, 3074, 3132, 3483, 3741, 4293, 4558, 4611, 4644, 4698, 4988, 5724, 6148, 6837, 6966, 7482, 8586, 9116, 9222, 9396, 11223, 13674, 13833, 13932, 14964, 17172, 18444, 20511, 22446, 27348, 27666, 33669, 41022, 41499, 44892, 55332, 61533, 66091, 67338, 82044, 82998, 101007, 123066, 124497, 132182, 134676, 165996, 184599, 198273, 202014, 246132, 248994, 264364, 369198, 396546, 404028, 497988, 594819, 738396, 793092, 1189638, 1784457, 2379276, 3568914, 5353371, 7137828, 10706742, 21413484]

約数ペア:

[(1, 21413484), (2, 10706742), (3, 7137828), (4, 5353371), (6, 3568914), (9, 2379276), (12, 1784457), (18, 1189638), (27, 793092), (29, 738396), (36, 594819), (43, 497988), (53, 404028), (54, 396546), (58, 369198), (81, 264364), (86, 248994), (87, 246132), (106, 202014), (108, 198273), (116, 184599), (129, 165996), (159, 134676), (162, 132182), (172, 124497), (174, 123066), (212, 101007), (258, 82998), (261, 82044), (318, 67338), (324, 66091), (348, 61533), (387, 55332), (477, 44892), (516, 41499), (522, 41022), (636, 33669), (774, 27666), (783, 27348), (954, 22446), (1044, 20511), (1161, 18444), (1247, 17172), (1431, 14964), (1537, 13932), (1548, 13833), (1566, 13674), (1908, 11223), (2279, 9396), (2322, 9222), (2349, 9116), (2494, 8586), (2862, 7482), (3074, 6966), (3132, 6837), (3483, 6148), (3741, 5724), (4293, 4988), (4558, 4698), (4611, 4644)]