21000638904

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1288699}}^1$

素因数の和:1288812

約数の個数: 64

約数和(自身を含む): 60620448000

約数和(自身を除く): 39619809096

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 97, 168, 194, 291, 388, 582, 679, 776, 1164, 1358, 2037, 2328, 2716, 4074, 5432, 8148, 16296, 1288699, 2577398, 3866097, 5154796, 7732194, 9020893, 10309592, 15464388, 18041786, 27062679, 30928776, 36083572, 54125358, 72167144, 108250716, 125003803, 216501432, 250007606, 375011409, 500015212, 750022818, 875026621, 1000030424, 1500045636, 1750053242, 2625079863, 3000091272, 3500106484, 5250159726, 7000212968, 10500319452, 21000638904]

約数ペア:

[(1, 21000638904), (2, 10500319452), (3, 7000212968), (4, 5250159726), (6, 3500106484), (7, 3000091272), (8, 2625079863), (12, 1750053242), (14, 1500045636), (21, 1000030424), (24, 875026621), (28, 750022818), (42, 500015212), (56, 375011409), (84, 250007606), (97, 216501432), (168, 125003803), (194, 108250716), (291, 72167144), (388, 54125358), (582, 36083572), (679, 30928776), (776, 27062679), (1164, 18041786), (1358, 15464388), (2037, 10309592), (2328, 9020893), (2716, 7732194), (4074, 5154796), (5432, 3866097), (8148, 2577398), (16296, 1288699)]