21684768

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{61}}^1$

素因数の和:127

約数の個数: 144

約数和(自身を含む): 69120576

約数和(自身を除く): 47435808

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 23, 24, 28, 32, 42, 46, 48, 56, 61, 69, 84, 92, 96, 112, 122, 138, 161, 168, 183, 184, 224, 244, 276, 322, 336, 366, 368, 427, 483, 488, 529, 552, 644, 672, 732, 736, 854, 966, 976, 1058, 1104, 1281, 1288, 1403, 1464, 1587, 1708, 1932, 1952, 2116, 2208, 2562, 2576, 2806, 2928, 3174, 3416, 3703, 3864, 4209, 4232, 5124, 5152, 5612, 5856, 6348, 6832, 7406, 7728, 8418, 8464, 9821, 10248, 11109, 11224, 12696, 13664, 14812, 15456, 16836, 16928, 19642, 20496, 22218, 22448, 25392, 29463, 29624, 32269, 33672, 39284, 40992, 44436, 44896, 50784, 58926, 59248, 64538, 67344, 78568, 88872, 96807, 117852, 118496, 129076, 134688, 157136, 177744, 193614, 225883, 235704, 258152, 314272, 355488, 387228, 451766, 471408, 516304, 677649, 774456, 903532, 942816, 1032608, 1355298, 1548912, 1807064, 2710596, 3097824, 3614128, 5421192, 7228256, 10842384, 21684768]

約数ペア:

[(1, 21684768), (2, 10842384), (3, 7228256), (4, 5421192), (6, 3614128), (7, 3097824), (8, 2710596), (12, 1807064), (14, 1548912), (16, 1355298), (21, 1032608), (23, 942816), (24, 903532), (28, 774456), (32, 677649), (42, 516304), (46, 471408), (48, 451766), (56, 387228), (61, 355488), (69, 314272), (84, 258152), (92, 235704), (96, 225883), (112, 193614), (122, 177744), (138, 157136), (161, 134688), (168, 129076), (183, 118496), (184, 117852), (224, 96807), (244, 88872), (276, 78568), (322, 67344), (336, 64538), (366, 59248), (368, 58926), (427, 50784), (483, 44896), (488, 44436), (529, 40992), (552, 39284), (644, 33672), (672, 32269), (732, 29624), (736, 29463), (854, 25392), (966, 22448), (976, 22218), (1058, 20496), (1104, 19642), (1281, 16928), (1288, 16836), (1403, 15456), (1464, 14812), (1587, 13664), (1708, 12696), (1932, 11224), (1952, 11109), (2116, 10248), (2208, 9821), (2562, 8464), (2576, 8418), (2806, 7728), (2928, 7406), (3174, 6832), (3416, 6348), (3703, 5856), (3864, 5612), (4209, 5152), (4232, 5124)]