81201351

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4951}}^1$

素因数の和:5043

約数の個数: 32

約数和(自身を含む): 136912896

約数和(自身を除く): 55711545

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 213, 231, 497, 781, 1491, 2343, 4951, 5467, 14853, 16401, 34657, 54461, 103971, 163383, 351521, 381227, 1054563, 1143681, 2460647, 3866731, 7381941, 11600193, 27067117, 81201351]

約数ペア:

[(1, 81201351), (3, 27067117), (7, 11600193), (11, 7381941), (21, 3866731), (33, 2460647), (71, 1143681), (77, 1054563), (213, 381227), (231, 351521), (497, 163383), (781, 103971), (1491, 54461), (2343, 34657), (4951, 16401), (5467, 14853)]