19717425

素因数分解:

$3^4\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1$

素因数の和:149

約数の個数: 120

約数和(自身を含む): 45372096

約数和(自身を除く): 25654671

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 27, 35, 39, 45, 63, 65, 75, 81, 91, 105, 107, 117, 135, 175, 189, 195, 225, 273, 315, 321, 325, 351, 405, 455, 525, 535, 567, 585, 675, 749, 819, 945, 963, 975, 1053, 1365, 1391, 1575, 1605, 1755, 2025, 2247, 2275, 2457, 2675, 2835, 2889, 2925, 3745, 4095, 4173, 4725, 4815, 5265, 6741, 6825, 6955, 7371, 8025, 8667, 8775, 9737, 11235, 12285, 12519, 14175, 14445, 18725, 20223, 20475, 20865, 24075, 26325, 29211, 33705, 34775, 36855, 37557, 43335, 48685, 56175, 60669, 61425, 62595, 72225, 87633, 101115, 104325, 112671, 146055, 168525, 184275, 187785, 216675, 243425, 262899, 303345, 312975, 438165, 505575, 563355, 730275, 788697, 938925, 1314495, 1516725, 2190825, 2816775, 3943485, 6572475, 19717425]

約数ペア:

[(1, 19717425), (3, 6572475), (5, 3943485), (7, 2816775), (9, 2190825), (13, 1516725), (15, 1314495), (21, 938925), (25, 788697), (27, 730275), (35, 563355), (39, 505575), (45, 438165), (63, 312975), (65, 303345), (75, 262899), (81, 243425), (91, 216675), (105, 187785), (107, 184275), (117, 168525), (135, 146055), (175, 112671), (189, 104325), (195, 101115), (225, 87633), (273, 72225), (315, 62595), (321, 61425), (325, 60669), (351, 56175), (405, 48685), (455, 43335), (525, 37557), (535, 36855), (567, 34775), (585, 33705), (675, 29211), (749, 26325), (819, 24075), (945, 20865), (963, 20475), (975, 20223), (1053, 18725), (1365, 14445), (1391, 14175), (1575, 12519), (1605, 12285), (1755, 11235), (2025, 9737), (2247, 8775), (2275, 8667), (2457, 8025), (2675, 7371), (2835, 6955), (2889, 6825), (2925, 6741), (3745, 5265), (4095, 4815), (4173, 4725)]