21138768

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{313}}^1$

素因数の和:401

約数の個数: 120

約数和(自身を含む): 68838848

約数和(自身を除く): 47700080

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 67, 72, 84, 112, 126, 134, 144, 168, 201, 252, 268, 313, 336, 402, 469, 504, 536, 603, 626, 804, 938, 939, 1008, 1072, 1206, 1252, 1407, 1608, 1876, 1878, 2191, 2412, 2504, 2814, 2817, 3216, 3752, 3756, 4221, 4382, 4824, 5008, 5628, 5634, 6573, 7504, 7512, 8442, 8764, 9648, 11256, 11268, 13146, 15024, 16884, 17528, 19719, 20971, 22512, 22536, 26292, 33768, 35056, 39438, 41942, 45072, 52584, 62913, 67536, 78876, 83884, 105168, 125826, 146797, 157752, 167768, 188739, 251652, 293594, 315504, 335536, 377478, 440391, 503304, 587188, 754956, 880782, 1006608, 1174376, 1321173, 1509912, 1761564, 2348752, 2642346, 3019824, 3523128, 5284692, 7046256, 10569384, 21138768]

約数ペア:

[(1, 21138768), (2, 10569384), (3, 7046256), (4, 5284692), (6, 3523128), (7, 3019824), (8, 2642346), (9, 2348752), (12, 1761564), (14, 1509912), (16, 1321173), (18, 1174376), (21, 1006608), (24, 880782), (28, 754956), (36, 587188), (42, 503304), (48, 440391), (56, 377478), (63, 335536), (67, 315504), (72, 293594), (84, 251652), (112, 188739), (126, 167768), (134, 157752), (144, 146797), (168, 125826), (201, 105168), (252, 83884), (268, 78876), (313, 67536), (336, 62913), (402, 52584), (469, 45072), (504, 41942), (536, 39438), (603, 35056), (626, 33768), (804, 26292), (938, 22536), (939, 22512), (1008, 20971), (1072, 19719), (1206, 17528), (1252, 16884), (1407, 15024), (1608, 13146), (1876, 11268), (1878, 11256), (2191, 9648), (2412, 8764), (2504, 8442), (2814, 7512), (2817, 7504), (3216, 6573), (3752, 5634), (3756, 5628), (4221, 5008), (4382, 4824)]