20827128

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{821}}^1$

素因数の和:988

約数の個数: 64

約数和(自身を含む): 59973120

約数和(自身を除く): 39145992

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 151, 168, 302, 453, 604, 821, 906, 1057, 1208, 1642, 1812, 2114, 2463, 3171, 3284, 3624, 4228, 4926, 5747, 6342, 6568, 8456, 9852, 11494, 12684, 17241, 19704, 22988, 25368, 34482, 45976, 68964, 123971, 137928, 247942, 371913, 495884, 743826, 867797, 991768, 1487652, 1735594, 2603391, 2975304, 3471188, 5206782, 6942376, 10413564, 20827128]

約数ペア:

[(1, 20827128), (2, 10413564), (3, 6942376), (4, 5206782), (6, 3471188), (7, 2975304), (8, 2603391), (12, 1735594), (14, 1487652), (21, 991768), (24, 867797), (28, 743826), (42, 495884), (56, 371913), (84, 247942), (151, 137928), (168, 123971), (302, 68964), (453, 45976), (604, 34482), (821, 25368), (906, 22988), (1057, 19704), (1208, 17241), (1642, 12684), (1812, 11494), (2114, 9852), (2463, 8456), (3171, 6568), (3284, 6342), (3624, 5747), (4228, 4926)]