31490487

素因数分解:

$3^2\times 7^3\times {\mathrm{101}}^2$

素因数の和:229

約数の個数: 36

約数和(自身を含む): 53575600

約数和(自身を除く): 22085113

約数列:

[1, 3, 7, 9, 21, 49, 63, 101, 147, 303, 343, 441, 707, 909, 1029, 2121, 3087, 4949, 6363, 10201, 14847, 30603, 34643, 44541, 71407, 91809, 103929, 214221, 311787, 499849, 642663, 1499547, 3498943, 4498641, 10496829, 31490487]

約数ペア:

[(1, 31490487), (3, 10496829), (7, 4498641), (9, 3498943), (21, 1499547), (49, 642663), (63, 499849), (101, 311787), (147, 214221), (303, 103929), (343, 91809), (441, 71407), (707, 44541), (909, 34643), (1029, 30603), (2121, 14847), (3087, 10201), (4949, 6363)]