21583856

素因数分解:

$2^4\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1871}}^1$

素因数の和:1989

約数の個数: 40

約数和(自身を含む): 48282624

約数和(自身を除く): 26698768

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 103, 112, 206, 412, 721, 824, 1442, 1648, 1871, 2884, 3742, 5768, 7484, 11536, 13097, 14968, 26194, 29936, 52388, 104776, 192713, 209552, 385426, 770852, 1348991, 1541704, 2697982, 3083408, 5395964, 10791928, 21583856]

約数ペア:

[(1, 21583856), (2, 10791928), (4, 5395964), (7, 3083408), (8, 2697982), (14, 1541704), (16, 1348991), (28, 770852), (56, 385426), (103, 209552), (112, 192713), (206, 104776), (412, 52388), (721, 29936), (824, 26194), (1442, 14968), (1648, 13097), (1871, 11536), (2884, 7484), (3742, 5768)]