215512269

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{4253}}^1$

素因数の和:4409

約数の個数: 32

約数和(自身を含む): 348487680

約数和(自身を除く): 132975411

約数列:

[1, 3, 7, 19, 21, 57, 127, 133, 381, 399, 889, 2413, 2667, 4253, 7239, 12759, 16891, 29771, 50673, 80807, 89313, 242421, 540131, 565649, 1620393, 1696947, 3780917, 10262489, 11342751, 30787467, 71837423, 215512269]

約数ペア:

[(1, 215512269), (3, 71837423), (7, 30787467), (19, 11342751), (21, 10262489), (57, 3780917), (127, 1696947), (133, 1620393), (381, 565649), (399, 540131), (889, 242421), (2413, 89313), (2667, 80807), (4253, 50673), (7239, 29771), (12759, 16891)]