20779675293

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{457}}^1\times {\mathrm{16421}}^1$

素因数の和:16965

約数の個数: 32

約数和(自身を含む): 30325784832

約数和(自身を除く): 9546109539

約数列:

[1, 3, 13, 39, 71, 213, 457, 923, 1371, 2769, 5941, 16421, 17823, 32447, 49263, 97341, 213473, 421811, 640419, 1165891, 1265433, 3497673, 7504397, 15156583, 22513191, 45469749, 97557161, 292671483, 532812187, 1598436561, 6926558431, 20779675293]

約数ペア:

[(1, 20779675293), (3, 6926558431), (13, 1598436561), (39, 532812187), (71, 292671483), (213, 97557161), (457, 45469749), (923, 22513191), (1371, 15156583), (2769, 7504397), (5941, 3497673), (16421, 1265433), (17823, 1165891), (32447, 640419), (49263, 421811), (97341, 213473)]