253259531

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{293}}^1$

素因数の和:483

約数の個数: 32

約数和(自身を含む): 313474560

約数和(自身を除く): 60215029

約数列:

[1, 7, 19, 67, 97, 133, 293, 469, 679, 1273, 1843, 2051, 5567, 6499, 8911, 12901, 19631, 28421, 38969, 45493, 123481, 137417, 198947, 372989, 539999, 864367, 1904207, 2610923, 3779993, 13329449, 36179933, 253259531]

約数ペア:

[(1, 253259531), (7, 36179933), (19, 13329449), (67, 3779993), (97, 2610923), (133, 1904207), (293, 864367), (469, 539999), (679, 372989), (1273, 198947), (1843, 137417), (2051, 123481), (5567, 45493), (6499, 38969), (8911, 28421), (12901, 19631)]