19621984

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{547}}^1$

素因数の和:635

約数の個数: 48

約数和(自身を含む): 41428800

約数和(自身を除く): 21806816

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 59, 76, 118, 152, 236, 304, 472, 547, 608, 944, 1094, 1121, 1888, 2188, 2242, 4376, 4484, 8752, 8968, 10393, 17504, 17936, 20786, 32273, 35872, 41572, 64546, 83144, 129092, 166288, 258184, 332576, 516368, 613187, 1032736, 1226374, 2452748, 4905496, 9810992, 19621984]

約数ペア:

[(1, 19621984), (2, 9810992), (4, 4905496), (8, 2452748), (16, 1226374), (19, 1032736), (32, 613187), (38, 516368), (59, 332576), (76, 258184), (118, 166288), (152, 129092), (236, 83144), (304, 64546), (472, 41572), (547, 35872), (608, 32273), (944, 20786), (1094, 17936), (1121, 17504), (1888, 10393), (2188, 8968), (2242, 8752), (4376, 4484)]