21568484

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 44943360

約数和(自身を除く): 23374876

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 109, 148, 191, 218, 259, 382, 436, 518, 763, 764, 1036, 1337, 1526, 2674, 3052, 4033, 5348, 7067, 8066, 14134, 16132, 20819, 28231, 28268, 41638, 49469, 56462, 83276, 98938, 112924, 145733, 197876, 291466, 582932, 770303, 1540606, 3081212, 5392121, 10784242, 21568484]

約数ペア:

[(1, 21568484), (2, 10784242), (4, 5392121), (7, 3081212), (14, 1540606), (28, 770303), (37, 582932), (74, 291466), (109, 197876), (148, 145733), (191, 112924), (218, 98938), (259, 83276), (382, 56462), (436, 49469), (518, 41638), (763, 28268), (764, 28231), (1036, 20819), (1337, 16132), (1526, 14134), (2674, 8066), (3052, 7067), (4033, 5348)]