205941393

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:339

約数の個数: 64

約数和(自身を含む): 359424000

約数和(自身を除く): 153482607

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 103, 149, 189, 213, 309, 447, 497, 639, 721, 927, 1043, 1341, 1491, 1917, 2163, 2781, 3129, 4023, 4473, 6489, 7313, 9387, 10579, 13419, 15347, 19467, 21939, 28161, 31737, 46041, 51191, 65817, 74053, 95211, 107429, 138123, 153573, 197451, 222159, 285633, 322287, 414369, 460719, 666477, 966861, 1089637, 1382157, 1999431, 2900583, 3268911, 7627459, 9806733, 22882377, 29420199, 68647131, 205941393]

約数ペア:

[(1, 205941393), (3, 68647131), (7, 29420199), (9, 22882377), (21, 9806733), (27, 7627459), (63, 3268911), (71, 2900583), (103, 1999431), (149, 1382157), (189, 1089637), (213, 966861), (309, 666477), (447, 460719), (497, 414369), (639, 322287), (721, 285633), (927, 222159), (1043, 197451), (1341, 153573), (1491, 138123), (1917, 107429), (2163, 95211), (2781, 74053), (3129, 65817), (4023, 51191), (4473, 46041), (6489, 31737), (7313, 28161), (9387, 21939), (10579, 19467), (13419, 15347)]