16977681

素因数分解:

$3^7\times 7^1\times {\mathrm{1109}}^1$

素因数の和:1137

約数の個数: 32

約数和(自身を含む): 29126400

約数和(自身を除く): 12148719

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1109, 1701, 2187, 3327, 5103, 7763, 9981, 15309, 23289, 29943, 69867, 89829, 209601, 269487, 628803, 808461, 1886409, 2425383, 5659227, 16977681]

約数ペア:

[(1, 16977681), (3, 5659227), (7, 2425383), (9, 1886409), (21, 808461), (27, 628803), (63, 269487), (81, 209601), (189, 89829), (243, 69867), (567, 29943), (729, 23289), (1109, 15309), (1701, 9981), (2187, 7763), (3327, 5103)]