20732355

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:198

約数の個数: 80

約数和(自身を含む): 43490304

約数和(自身を除く): 22757949

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 71, 81, 103, 105, 135, 189, 213, 309, 315, 355, 405, 497, 515, 567, 639, 721, 927, 945, 1065, 1491, 1545, 1917, 2163, 2485, 2781, 2835, 3195, 3605, 4473, 4635, 5751, 6489, 7313, 7455, 8343, 9585, 10815, 13419, 13905, 19467, 21939, 22365, 28755, 32445, 36565, 40257, 41715, 51191, 58401, 65817, 67095, 97335, 109695, 153573, 197451, 201285, 255955, 292005, 329085, 460719, 592353, 767865, 987255, 1382157, 2303595, 2961765, 4146471, 6910785, 20732355]

約数ペア:

[(1, 20732355), (3, 6910785), (5, 4146471), (7, 2961765), (9, 2303595), (15, 1382157), (21, 987255), (27, 767865), (35, 592353), (45, 460719), (63, 329085), (71, 292005), (81, 255955), (103, 201285), (105, 197451), (135, 153573), (189, 109695), (213, 97335), (309, 67095), (315, 65817), (355, 58401), (405, 51191), (497, 41715), (515, 40257), (567, 36565), (639, 32445), (721, 28755), (927, 22365), (945, 21939), (1065, 19467), (1491, 13905), (1545, 13419), (1917, 10815), (2163, 9585), (2485, 8343), (2781, 7455), (2835, 7313), (3195, 6489), (3605, 5751), (4473, 4635)]