21000947994

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{49339}}^1$

素因数の和:49484

約数の個数: 96

約数和(自身を含む): 52370660160

約数和(自身を除く): 31369712166

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 107, 117, 153, 214, 221, 234, 306, 321, 442, 642, 663, 963, 1326, 1391, 1819, 1926, 1989, 2782, 3638, 3978, 4173, 5457, 8346, 10914, 12519, 16371, 23647, 25038, 32742, 47294, 49339, 70941, 98678, 141882, 148017, 212823, 296034, 425646, 444051, 641407, 838763, 888102, 1282814, 1677526, 1924221, 2516289, 3848442, 5032578, 5279273, 5772663, 7548867, 10558546, 10903919, 11545326, 15097734, 15837819, 21807838, 31675638, 32711757, 47513457, 65423514, 68630549, 89747641, 95026914, 98135271, 137261098, 179495282, 196270542, 205891647, 269242923, 411783294, 538485846, 617674941, 807728769, 1166719333, 1235349882, 1615457538, 2333438666, 3500157999, 7000315998, 10500473997, 21000947994]

約数ペア:

[(1, 21000947994), (2, 10500473997), (3, 7000315998), (6, 3500157999), (9, 2333438666), (13, 1615457538), (17, 1235349882), (18, 1166719333), (26, 807728769), (34, 617674941), (39, 538485846), (51, 411783294), (78, 269242923), (102, 205891647), (107, 196270542), (117, 179495282), (153, 137261098), (214, 98135271), (221, 95026914), (234, 89747641), (306, 68630549), (321, 65423514), (442, 47513457), (642, 32711757), (663, 31675638), (963, 21807838), (1326, 15837819), (1391, 15097734), (1819, 11545326), (1926, 10903919), (1989, 10558546), (2782, 7548867), (3638, 5772663), (3978, 5279273), (4173, 5032578), (5457, 3848442), (8346, 2516289), (10914, 1924221), (12519, 1677526), (16371, 1282814), (23647, 888102), (25038, 838763), (32742, 641407), (47294, 444051), (49339, 425646), (70941, 296034), (98678, 212823), (141882, 148017)]