81131868

素因数分解:

$2^2\times 3^6\times {\mathrm{27823}}^1$

素因数の和:27845

約数の個数: 42

約数和(自身を含む): 212881424

約数和(自身を除く): 131749556

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 972, 1458, 2916, 27823, 55646, 83469, 111292, 166938, 250407, 333876, 500814, 751221, 1001628, 1502442, 2253663, 3004884, 4507326, 6760989, 9014652, 13521978, 20282967, 27043956, 40565934, 81131868]

約数ペア:

[(1, 81131868), (2, 40565934), (3, 27043956), (4, 20282967), (6, 13521978), (9, 9014652), (12, 6760989), (18, 4507326), (27, 3004884), (36, 2253663), (54, 1502442), (81, 1001628), (108, 751221), (162, 500814), (243, 333876), (324, 250407), (486, 166938), (729, 111292), (972, 83469), (1458, 55646), (2916, 27823)]