21697432875

素因数分解:

$3^3\times 5^3\times {\mathrm{97}}^1\times {\mathrm{191}}^1\times {\mathrm{347}}^1$

素因数の和:659

約数の個数: 128

約数和(自身を含む): 40859320320

約数和(自身を除く): 19161887445

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 97, 125, 135, 191, 225, 291, 347, 375, 485, 573, 675, 873, 955, 1041, 1125, 1455, 1719, 1735, 2425, 2619, 2865, 3123, 3375, 4365, 4775, 5157, 5205, 7275, 8595, 8675, 9369, 12125, 13095, 14325, 15615, 18527, 21825, 23875, 25785, 26025, 33659, 36375, 42975, 43375, 46845, 55581, 65475, 66277, 71625, 78075, 92635, 100977, 109125, 128925, 130125, 166743, 168295, 198831, 214875, 234225, 277905, 302931, 327375, 331385, 390375, 463175, 500229, 504885, 596493, 644625, 833715, 841475, 908793, 994155, 1171125, 1389525, 1514655, 1656925, 1789479, 2315875, 2501145, 2524425, 2982465, 4168575, 4207375, 4543965, 4970775, 6428869, 6947625, 7573275, 8284625, 8947395, 12505725, 12622125, 14912325, 19286607, 20842875, 22719825, 24853875, 32144345, 37866375, 44736975, 57859821, 62528625, 74561625, 96433035, 113599125, 160721725, 173579463, 223684875, 289299105, 482165175, 803608625, 867897315, 1446495525, 2410825875, 4339486575, 7232477625, 21697432875]

約数ペア:

[(1, 21697432875), (3, 7232477625), (5, 4339486575), (9, 2410825875), (15, 1446495525), (25, 867897315), (27, 803608625), (45, 482165175), (75, 289299105), (97, 223684875), (125, 173579463), (135, 160721725), (191, 113599125), (225, 96433035), (291, 74561625), (347, 62528625), (375, 57859821), (485, 44736975), (573, 37866375), (675, 32144345), (873, 24853875), (955, 22719825), (1041, 20842875), (1125, 19286607), (1455, 14912325), (1719, 12622125), (1735, 12505725), (2425, 8947395), (2619, 8284625), (2865, 7573275), (3123, 6947625), (3375, 6428869), (4365, 4970775), (4775, 4543965), (5157, 4207375), (5205, 4168575), (7275, 2982465), (8595, 2524425), (8675, 2501145), (9369, 2315875), (12125, 1789479), (13095, 1656925), (14325, 1514655), (15615, 1389525), (18527, 1171125), (21825, 994155), (23875, 908793), (25785, 841475), (26025, 833715), (33659, 644625), (36375, 596493), (42975, 504885), (43375, 500229), (46845, 463175), (55581, 390375), (65475, 331385), (66277, 327375), (71625, 302931), (78075, 277905), (92635, 234225), (100977, 214875), (109125, 198831), (128925, 168295), (130125, 166743)]