81712977

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 118563840

約数和(自身を除く): 36850863

約数列:

[1, 3, 19, 57, 61, 71, 183, 213, 331, 993, 1159, 1349, 3477, 4047, 4331, 6289, 12993, 18867, 20191, 23501, 60573, 70503, 82289, 246867, 383629, 446519, 1150887, 1339557, 1433561, 4300683, 27237659, 81712977]

約数ペア:

[(1, 81712977), (3, 27237659), (19, 4300683), (57, 1433561), (61, 1339557), (71, 1150887), (183, 446519), (213, 383629), (331, 246867), (993, 82289), (1159, 70503), (1349, 60573), (3477, 23501), (4047, 20191), (4331, 18867), (6289, 12993)]