251259057

素因数分解:

$3^3\times 7^1\times {\mathrm{457}}^1\times {\mathrm{2909}}^1$

素因数の和:3382

約数の個数: 32

約数和(自身を含む): 426489600

約数和(自身を除く): 175230543

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 457, 1371, 2909, 3199, 4113, 8727, 9597, 12339, 20363, 26181, 28791, 61089, 78543, 86373, 183267, 549801, 1329413, 3988239, 9305891, 11964717, 27917673, 35894151, 83753019, 251259057]

約数ペア:

[(1, 251259057), (3, 83753019), (7, 35894151), (9, 27917673), (21, 11964717), (27, 9305891), (63, 3988239), (189, 1329413), (457, 549801), (1371, 183267), (2909, 86373), (3199, 78543), (4113, 61089), (8727, 28791), (9597, 26181), (12339, 20363)]