21814143

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{293}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 33191424

約数和(自身を除く): 11377281

約数列:

[1, 3, 13, 23, 39, 69, 83, 249, 293, 299, 879, 897, 1079, 1909, 3237, 3809, 5727, 6739, 11427, 20217, 24319, 24817, 72957, 74451, 87607, 262821, 316147, 559337, 948441, 1678011, 7271381, 21814143]

約数ペア:

[(1, 21814143), (3, 7271381), (13, 1678011), (23, 948441), (39, 559337), (69, 316147), (83, 262821), (249, 87607), (293, 74451), (299, 72957), (879, 24817), (897, 24319), (1079, 20217), (1909, 11427), (3237, 6739), (3809, 5727)]