21092520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1283}}^1$

素因数の和:1434

約数の個数: 64

約数和(自身を含む): 63789120

約数和(自身を除く): 42696600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 137, 274, 411, 548, 685, 822, 1096, 1283, 1370, 1644, 2055, 2566, 2740, 3288, 3849, 4110, 5132, 5480, 6415, 7698, 8220, 10264, 12830, 15396, 16440, 19245, 25660, 30792, 38490, 51320, 76980, 153960, 175771, 351542, 527313, 703084, 878855, 1054626, 1406168, 1757710, 2109252, 2636565, 3515420, 4218504, 5273130, 7030840, 10546260, 21092520]

約数ペア:

[(1, 21092520), (2, 10546260), (3, 7030840), (4, 5273130), (5, 4218504), (6, 3515420), (8, 2636565), (10, 2109252), (12, 1757710), (15, 1406168), (20, 1054626), (24, 878855), (30, 703084), (40, 527313), (60, 351542), (120, 175771), (137, 153960), (274, 76980), (411, 51320), (548, 38490), (685, 30792), (822, 25660), (1096, 19245), (1283, 16440), (1370, 15396), (1644, 12830), (2055, 10264), (2566, 8220), (2740, 7698), (3288, 6415), (3849, 5480), (4110, 5132)]