21284144

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6553}}^1$

素因数の和:6597

約数の個数: 40

約数和(自身を含む): 48761760

約数和(自身を除く): 27477616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 406, 464, 812, 1624, 3248, 6553, 13106, 26212, 45871, 52424, 91742, 104848, 183484, 190037, 366968, 380074, 733936, 760148, 1330259, 1520296, 2660518, 3040592, 5321036, 10642072, 21284144]

約数ペア:

[(1, 21284144), (2, 10642072), (4, 5321036), (7, 3040592), (8, 2660518), (14, 1520296), (16, 1330259), (28, 760148), (29, 733936), (56, 380074), (58, 366968), (112, 190037), (116, 183484), (203, 104848), (232, 91742), (406, 52424), (464, 45871), (812, 26212), (1624, 13106), (3248, 6553)]