217572278

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{128437}}^1$

素因数の和:128468

約数の個数: 24

約数和(自身を含む): 409974096

約数和(自身を除く): 192401818

約数列:

[1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 847, 1694, 128437, 256874, 899059, 1412807, 1798118, 2825614, 9889649, 15540877, 19779298, 31081754, 108786139, 217572278]

約数ペア:

[(1, 217572278), (2, 108786139), (7, 31081754), (11, 19779298), (14, 15540877), (22, 9889649), (77, 2825614), (121, 1798118), (154, 1412807), (242, 899059), (847, 256874), (1694, 128437)]