20305761

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 32102400

約数和(自身を除く): 11796639

約数列:

[1, 3, 7, 21, 43, 113, 129, 199, 301, 339, 597, 791, 903, 1393, 2373, 4179, 4859, 8557, 14577, 22487, 25671, 34013, 59899, 67461, 102039, 157409, 179697, 472227, 966941, 2900823, 6768587, 20305761]

約数ペア:

[(1, 20305761), (3, 6768587), (7, 2900823), (21, 966941), (43, 472227), (113, 179697), (129, 157409), (199, 102039), (301, 67461), (339, 59899), (597, 34013), (791, 25671), (903, 22487), (1393, 14577), (2373, 8557), (4179, 4859)]