12935979

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 22913280

約数和(自身を除く): 9977301

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 101, 107, 133, 171, 303, 321, 399, 707, 749, 909, 963, 1197, 1919, 2033, 2121, 2247, 5757, 6099, 6363, 6741, 10807, 13433, 14231, 17271, 18297, 32421, 40299, 42693, 75649, 97263, 120897, 128079, 205333, 226947, 615999, 680841, 1437331, 1847997, 4311993, 12935979]

約数ペア:

[(1, 12935979), (3, 4311993), (7, 1847997), (9, 1437331), (19, 680841), (21, 615999), (57, 226947), (63, 205333), (101, 128079), (107, 120897), (133, 97263), (171, 75649), (303, 42693), (321, 40299), (399, 32421), (707, 18297), (749, 17271), (909, 14231), (963, 13433), (1197, 10807), (1919, 6741), (2033, 6363), (2121, 6099), (2247, 5757)]