16745421

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1021}}^1$

素因数の和:1113

約数の個数: 32

約数和(自身を含む): 28256256

約数和(自身を除く): 11510835

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 213, 231, 497, 781, 1021, 1491, 2343, 3063, 5467, 7147, 11231, 16401, 21441, 33693, 72491, 78617, 217473, 235851, 507437, 797401, 1522311, 2392203, 5581807, 16745421]

約数ペア:

[(1, 16745421), (3, 5581807), (7, 2392203), (11, 1522311), (21, 797401), (33, 507437), (71, 235851), (77, 217473), (213, 78617), (231, 72491), (497, 33693), (781, 21441), (1021, 16401), (1491, 11231), (2343, 7147), (3063, 5467)]