21396648

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:227

約数の個数: 128

約数和(自身を含む): 67173120

約数和(自身を除く): 45776472

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 97, 101, 104, 156, 168, 182, 194, 202, 273, 291, 303, 312, 364, 388, 404, 546, 582, 606, 679, 707, 728, 776, 808, 1092, 1164, 1212, 1261, 1313, 1358, 1414, 2037, 2121, 2184, 2328, 2424, 2522, 2626, 2716, 2828, 3783, 3939, 4074, 4242, 5044, 5252, 5432, 5656, 7566, 7878, 8148, 8484, 8827, 9191, 9797, 10088, 10504, 15132, 15756, 16296, 16968, 17654, 18382, 19594, 26481, 27573, 29391, 30264, 31512, 35308, 36764, 39188, 52962, 55146, 58782, 68579, 70616, 73528, 78376, 105924, 110292, 117564, 127361, 137158, 205737, 211848, 220584, 235128, 254722, 274316, 382083, 411474, 509444, 548632, 764166, 822948, 891527, 1018888, 1528332, 1645896, 1783054, 2674581, 3056664, 3566108, 5349162, 7132216, 10698324, 21396648]

約数ペア:

[(1, 21396648), (2, 10698324), (3, 7132216), (4, 5349162), (6, 3566108), (7, 3056664), (8, 2674581), (12, 1783054), (13, 1645896), (14, 1528332), (21, 1018888), (24, 891527), (26, 822948), (28, 764166), (39, 548632), (42, 509444), (52, 411474), (56, 382083), (78, 274316), (84, 254722), (91, 235128), (97, 220584), (101, 211848), (104, 205737), (156, 137158), (168, 127361), (182, 117564), (194, 110292), (202, 105924), (273, 78376), (291, 73528), (303, 70616), (312, 68579), (364, 58782), (388, 55146), (404, 52962), (546, 39188), (582, 36764), (606, 35308), (679, 31512), (707, 30264), (728, 29391), (776, 27573), (808, 26481), (1092, 19594), (1164, 18382), (1212, 17654), (1261, 16968), (1313, 16296), (1358, 15756), (1414, 15132), (2037, 10504), (2121, 10088), (2184, 9797), (2328, 9191), (2424, 8827), (2522, 8484), (2626, 8148), (2716, 7878), (2828, 7566), (3783, 5656), (3939, 5432), (4074, 5252), (4242, 5044)]