28887111

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 48117888

約数和(自身を除く): 19230777

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 101, 107, 243, 297, 303, 321, 891, 909, 963, 1111, 1177, 2673, 2727, 2889, 3333, 3531, 8181, 8667, 9999, 10593, 10807, 24543, 26001, 29997, 31779, 32421, 89991, 95337, 97263, 118877, 269973, 286011, 291789, 356631, 875367, 1069893, 2626101, 3209679, 9629037, 28887111]

約数ペア:

[(1, 28887111), (3, 9629037), (9, 3209679), (11, 2626101), (27, 1069893), (33, 875367), (81, 356631), (99, 291789), (101, 286011), (107, 269973), (243, 118877), (297, 97263), (303, 95337), (321, 89991), (891, 32421), (909, 31779), (963, 29997), (1111, 26001), (1177, 24543), (2673, 10807), (2727, 10593), (2889, 9999), (3333, 8667), (3531, 8181)]