20777648

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{431}}^1$

素因数の和:593

約数の個数: 40

約数和(自身を含む): 42425856

約数和(自身を除く): 21648208

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 131, 184, 262, 368, 431, 524, 862, 1048, 1724, 2096, 3013, 3448, 6026, 6896, 9913, 12052, 19826, 24104, 39652, 48208, 56461, 79304, 112922, 158608, 225844, 451688, 903376, 1298603, 2597206, 5194412, 10388824, 20777648]

約数ペア:

[(1, 20777648), (2, 10388824), (4, 5194412), (8, 2597206), (16, 1298603), (23, 903376), (46, 451688), (92, 225844), (131, 158608), (184, 112922), (262, 79304), (368, 56461), (431, 48208), (524, 39652), (862, 24104), (1048, 19826), (1724, 12052), (2096, 9913), (3013, 6896), (3448, 6026)]