20327967

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 34369920

約数和(自身を除く): 14041953

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 101, 107, 171, 209, 303, 321, 627, 909, 963, 1111, 1177, 1881, 1919, 2033, 3333, 3531, 5757, 6099, 9999, 10593, 10807, 17271, 18297, 21109, 22363, 32421, 63327, 67089, 97263, 118877, 189981, 201267, 205333, 356631, 615999, 1069893, 1847997, 2258663, 6775989, 20327967]

約数ペア:

[(1, 20327967), (3, 6775989), (9, 2258663), (11, 1847997), (19, 1069893), (33, 615999), (57, 356631), (99, 205333), (101, 201267), (107, 189981), (171, 118877), (209, 97263), (303, 67089), (321, 63327), (627, 32421), (909, 22363), (963, 21109), (1111, 18297), (1177, 17271), (1881, 10807), (1919, 10593), (2033, 9999), (3333, 6099), (3531, 5757)]