81359316

素因数分解:

$2^2\times 3^6\times {\mathrm{27901}}^1$

素因数の和:27923

約数の個数: 42

約数和(自身を含む): 213478202

約数和(自身を除く): 132118886

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 972, 1458, 2916, 27901, 55802, 83703, 111604, 167406, 251109, 334812, 502218, 753327, 1004436, 1506654, 2259981, 3013308, 4519962, 6779943, 9039924, 13559886, 20339829, 27119772, 40679658, 81359316]

約数ペア:

[(1, 81359316), (2, 40679658), (3, 27119772), (4, 20339829), (6, 13559886), (9, 9039924), (12, 6779943), (18, 4519962), (27, 3013308), (36, 2259981), (54, 1506654), (81, 1004436), (108, 753327), (162, 502218), (243, 334812), (324, 251109), (486, 167406), (729, 111604), (972, 83703), (1458, 55802), (2916, 27901)]