21000427875

素因数分解:

$3^3\times 5^3\times 7^1\times {\mathrm{593}}^1\times {\mathrm{1499}}^1$

素因数の和:2123

約数の個数: 128

約数和(自身を含む): 44478720000

約数和(自身を除く): 23478292125

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 125, 135, 175, 189, 225, 315, 375, 525, 593, 675, 875, 945, 1125, 1499, 1575, 1779, 2625, 2965, 3375, 4151, 4497, 4725, 5337, 7495, 7875, 8895, 10493, 12453, 13491, 14825, 16011, 20755, 22485, 23625, 26685, 31479, 37359, 37475, 40473, 44475, 52465, 62265, 67455, 74125, 80055, 94437, 103775, 112077, 112425, 133425, 157395, 186795, 187375, 202365, 222375, 262325, 283311, 311325, 337275, 400275, 472185, 518875, 560385, 562125, 667125, 786975, 888907, 933975, 1011825, 1311625, 1416555, 1556625, 1686375, 2001375, 2360925, 2666721, 2801925, 3934875, 4444535, 4669875, 5059125, 6222349, 7082775, 8000163, 11804625, 13333605, 14009625, 18667047, 22222675, 24000489, 31111745, 35413875, 40000815, 56001141, 66668025, 93335235, 111113375, 120002445, 155558725, 168003423, 200004075, 280005705, 333340125, 466676175, 600012225, 777793625, 840017115, 1000020375, 1400028525, 2333380875, 3000061125, 4200085575, 7000142625, 21000427875]

約数ペア:

[(1, 21000427875), (3, 7000142625), (5, 4200085575), (7, 3000061125), (9, 2333380875), (15, 1400028525), (21, 1000020375), (25, 840017115), (27, 777793625), (35, 600012225), (45, 466676175), (63, 333340125), (75, 280005705), (105, 200004075), (125, 168003423), (135, 155558725), (175, 120002445), (189, 111113375), (225, 93335235), (315, 66668025), (375, 56001141), (525, 40000815), (593, 35413875), (675, 31111745), (875, 24000489), (945, 22222675), (1125, 18667047), (1499, 14009625), (1575, 13333605), (1779, 11804625), (2625, 8000163), (2965, 7082775), (3375, 6222349), (4151, 5059125), (4497, 4669875), (4725, 4444535), (5337, 3934875), (7495, 2801925), (7875, 2666721), (8895, 2360925), (10493, 2001375), (12453, 1686375), (13491, 1556625), (14825, 1416555), (16011, 1311625), (20755, 1011825), (22485, 933975), (23625, 888907), (26685, 786975), (31479, 667125), (37359, 562125), (37475, 560385), (40473, 518875), (44475, 472185), (52465, 400275), (62265, 337275), (67455, 311325), (74125, 283311), (80055, 262325), (94437, 222375), (103775, 202365), (112077, 187375), (112425, 186795), (133425, 157395)]