20915671412

素因数分解:

$2^2\times {\mathrm{317}}^1\times {\mathrm{1277}}^1\times {\mathrm{12917}}^1$

素因数の和:14515

約数の個数: 24

約数和(自身を含む): 36749488104

約数和(自身を除く): 15833816692

約数列:

[1, 2, 4, 317, 634, 1268, 1277, 2554, 5108, 12917, 25834, 51668, 404809, 809618, 1619236, 4094689, 8189378, 16378756, 16495009, 32990018, 65980036, 5228917853, 10457835706, 20915671412]

約数ペア:

[(1, 20915671412), (2, 10457835706), (4, 5228917853), (317, 65980036), (634, 32990018), (1268, 16495009), (1277, 16378756), (2554, 8189378), (5108, 4094689), (12917, 1619236), (25834, 809618), (51668, 404809)]