25100397

素因数分解:

$3^2\times 7^3\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:247

約数の個数: 48

約数和(自身を含む): 43430400

約数和(自身を除く): 18330003

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 141, 147, 173, 329, 343, 423, 441, 519, 987, 1029, 1211, 1557, 2303, 2961, 3087, 3633, 6909, 8131, 8477, 10899, 16121, 20727, 24393, 25431, 48363, 56917, 59339, 73179, 76293, 145089, 170751, 178017, 398419, 512253, 534051, 1195257, 2788933, 3585771, 8366799, 25100397]

約数ペア:

[(1, 25100397), (3, 8366799), (7, 3585771), (9, 2788933), (21, 1195257), (47, 534051), (49, 512253), (63, 398419), (141, 178017), (147, 170751), (173, 145089), (329, 76293), (343, 73179), (423, 59339), (441, 56917), (519, 48363), (987, 25431), (1029, 24393), (1211, 20727), (1557, 16121), (2303, 10899), (2961, 8477), (3087, 8131), (3633, 6909)]