255280397421

素因数分解:

$3^1\times 7^2\times {\mathrm{1489}}^1\times {\mathrm{1166287}}^1$

素因数の和:1167793

約数の個数: 24

約数和(自身を含む): 396211359360

約数和(自身を除く): 140930961939

約数列:

[1, 3, 7, 21, 49, 147, 1489, 4467, 10423, 31269, 72961, 218883, 1166287, 3498861, 8164009, 24492027, 57148063, 171444189, 1736601343, 5209804029, 12156209401, 36468628203, 85093465807, 255280397421]

約数ペア:

[(1, 255280397421), (3, 85093465807), (7, 36468628203), (21, 12156209401), (49, 5209804029), (147, 1736601343), (1489, 171444189), (4467, 57148063), (10423, 24492027), (31269, 8164009), (72961, 3498861), (218883, 1166287)]