21306236

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{2633}}^1$

素因数の和:2678

約数の個数: 36

約数和(自身を含む): 45283728

約数和(自身を除く): 23977492

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 289, 476, 578, 1156, 2023, 2633, 4046, 5266, 8092, 10532, 18431, 36862, 44761, 73724, 89522, 179044, 313327, 626654, 760937, 1253308, 1521874, 3043748, 5326559, 10653118, 21306236]

約数ペア:

[(1, 21306236), (2, 10653118), (4, 5326559), (7, 3043748), (14, 1521874), (17, 1253308), (28, 760937), (34, 626654), (68, 313327), (119, 179044), (238, 89522), (289, 73724), (476, 44761), (578, 36862), (1156, 18431), (2023, 10532), (2633, 8092), (4046, 5266)]