81676539

素因数分解:

$3^3\times 7^1\times {\mathrm{139}}^1\times {\mathrm{3109}}^1$

素因数の和:3264

約数の個数: 32

約数和(自身を含む): 139328000

約数和(自身を除く): 57651461

約数列:

[1, 3, 7, 9, 21, 27, 63, 139, 189, 417, 973, 1251, 2919, 3109, 3753, 8757, 9327, 21763, 26271, 27981, 65289, 83943, 195867, 432151, 587601, 1296453, 3025057, 3889359, 9075171, 11668077, 27225513, 81676539]

約数ペア:

[(1, 81676539), (3, 27225513), (7, 11668077), (9, 9075171), (21, 3889359), (27, 3025057), (63, 1296453), (139, 587601), (189, 432151), (417, 195867), (973, 83943), (1251, 65289), (2919, 27981), (3109, 26271), (3753, 21763), (8757, 9327)]