21399601860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1306447}}^1$

素因数の和:1306482

約数の個数: 144

約数和(自身を含む): 79891908096

約数和(自身を除く): 58492306236

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1260, 1365, 1638, 1820, 2340, 2730, 3276, 4095, 5460, 8190, 16380, 1306447, 2612894, 3919341, 5225788, 6532235, 7838682, 9145129, 11758023, 13064470, 15677364, 16983811, 18290258, 19596705, 23516046, 26128940, 27435387, 33967622, 36580516, 39193410, 45725645, 47032092, 50951433, 54870774, 58790115, 67935244, 78386820, 82306161, 84919055, 91451290, 101902866, 109741548, 117580230, 118886677, 137176935, 152854299, 164612322, 169838110, 182902580, 203805732, 235160460, 237773354, 254757165, 274353870, 305708598, 329224644, 339676220, 356660031, 411530805, 475546708, 509514330, 548707740, 594433385, 611417196, 713320062, 764271495, 823061610, 1019028660, 1069980093, 1188866770, 1426640124, 1528542990, 1646123220, 1783300155, 2139960186, 2377733540, 3057085980, 3566600310, 4279920372, 5349900465, 7133200620, 10699800930, 21399601860]

約数ペア:

[(1, 21399601860), (2, 10699800930), (3, 7133200620), (4, 5349900465), (5, 4279920372), (6, 3566600310), (7, 3057085980), (9, 2377733540), (10, 2139960186), (12, 1783300155), (13, 1646123220), (14, 1528542990), (15, 1426640124), (18, 1188866770), (20, 1069980093), (21, 1019028660), (26, 823061610), (28, 764271495), (30, 713320062), (35, 611417196), (36, 594433385), (39, 548707740), (42, 509514330), (45, 475546708), (52, 411530805), (60, 356660031), (63, 339676220), (65, 329224644), (70, 305708598), (78, 274353870), (84, 254757165), (90, 237773354), (91, 235160460), (105, 203805732), (117, 182902580), (126, 169838110), (130, 164612322), (140, 152854299), (156, 137176935), (180, 118886677), (182, 117580230), (195, 109741548), (210, 101902866), (234, 91451290), (252, 84919055), (260, 82306161), (273, 78386820), (315, 67935244), (364, 58790115), (390, 54870774), (420, 50951433), (455, 47032092), (468, 45725645), (546, 39193410), (585, 36580516), (630, 33967622), (780, 27435387), (819, 26128940), (910, 23516046), (1092, 19596705), (1170, 18290258), (1260, 16983811), (1365, 15677364), (1638, 13064470), (1820, 11758023), (2340, 9145129), (2730, 7838682), (3276, 6532235), (4095, 5225788), (5460, 3919341), (8190, 2612894), (16380, 1306447)]