21838040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3391}}^1$

素因数の和:3432

約数の個数: 64

約数和(自身を含む): 58613760

約数和(自身を除く): 36775720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 3391, 6440, 6782, 13564, 16955, 23737, 27128, 33910, 47474, 67820, 77993, 94948, 118685, 135640, 155986, 189896, 237370, 311972, 389965, 474740, 545951, 623944, 779930, 949480, 1091902, 1559860, 2183804, 2729755, 3119720, 4367608, 5459510, 10919020, 21838040]

約数ペア:

[(1, 21838040), (2, 10919020), (4, 5459510), (5, 4367608), (7, 3119720), (8, 2729755), (10, 2183804), (14, 1559860), (20, 1091902), (23, 949480), (28, 779930), (35, 623944), (40, 545951), (46, 474740), (56, 389965), (70, 311972), (92, 237370), (115, 189896), (140, 155986), (161, 135640), (184, 118685), (230, 94948), (280, 77993), (322, 67820), (460, 47474), (644, 33910), (805, 27128), (920, 23737), (1288, 16955), (1610, 13564), (3220, 6782), (3391, 6440)]