193949511

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{1553}}^1$

素因数の和:1895

約数の個数: 32

約数和(自身を含む): 312291840

約数和(自身を除く): 118342329

約数列:

[1, 3, 7, 19, 21, 57, 133, 313, 399, 939, 1553, 2191, 4659, 5947, 6573, 10871, 17841, 29507, 32613, 41629, 88521, 124887, 206549, 486089, 619647, 1458267, 3402623, 9235691, 10207869, 27707073, 64649837, 193949511]

約数ペア:

[(1, 193949511), (3, 64649837), (7, 27707073), (19, 10207869), (21, 9235691), (57, 3402623), (133, 1458267), (313, 619647), (399, 486089), (939, 206549), (1553, 124887), (2191, 88521), (4659, 41629), (5947, 32613), (6573, 29507), (10871, 17841)]