20309898

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{821}}^1$

素因数の和:883

約数の個数: 64

約数和(自身を含む): 50503680

約数和(自身を除く): 30193782

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 31, 38, 42, 57, 62, 93, 114, 133, 186, 217, 266, 399, 434, 589, 651, 798, 821, 1178, 1302, 1642, 1767, 2463, 3534, 4123, 4926, 5747, 8246, 11494, 12369, 15599, 17241, 24738, 25451, 31198, 34482, 46797, 50902, 76353, 93594, 109193, 152706, 178157, 218386, 327579, 356314, 483569, 534471, 655158, 967138, 1068942, 1450707, 2901414, 3384983, 6769966, 10154949, 20309898]

約数ペア:

[(1, 20309898), (2, 10154949), (3, 6769966), (6, 3384983), (7, 2901414), (14, 1450707), (19, 1068942), (21, 967138), (31, 655158), (38, 534471), (42, 483569), (57, 356314), (62, 327579), (93, 218386), (114, 178157), (133, 152706), (186, 109193), (217, 93594), (266, 76353), (399, 50902), (434, 46797), (589, 34482), (651, 31198), (798, 25451), (821, 24738), (1178, 17241), (1302, 15599), (1642, 12369), (1767, 11494), (2463, 8246), (3534, 5747), (4123, 4926)]