78628221

素因数分解:

$3^2\times 7^1\times {\mathrm{457}}^1\times {\mathrm{2731}}^1$

素因数の和:3201

約数の個数: 24

約数和(自身を含む): 130130624

約数和(自身を除く): 51502403

約数列:

[1, 3, 7, 9, 21, 63, 457, 1371, 2731, 3199, 4113, 8193, 9597, 19117, 24579, 28791, 57351, 172053, 1248067, 3744201, 8736469, 11232603, 26209407, 78628221]

約数ペア:

[(1, 78628221), (3, 26209407), (7, 11232603), (9, 8736469), (21, 3744201), (63, 1248067), (457, 172053), (1371, 57351), (2731, 28791), (3199, 24579), (4113, 19117), (8193, 9597)]