18878146

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:346

約数の個数: 32

約数和(自身を含む): 33264000

約数和(自身を除く): 14385854

約数列:

[1, 2, 7, 14, 89, 109, 139, 178, 218, 278, 623, 763, 973, 1246, 1526, 1946, 9701, 12371, 15151, 19402, 24742, 30302, 67907, 86597, 106057, 135814, 173194, 212114, 1348439, 2696878, 9439073, 18878146]

約数ペア:

[(1, 18878146), (2, 9439073), (7, 2696878), (14, 1348439), (89, 212114), (109, 173194), (139, 135814), (178, 106057), (218, 86597), (278, 67907), (623, 30302), (763, 24742), (973, 19402), (1246, 15151), (1526, 12371), (1946, 9701)]