21735658

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1993}}^1$

素因数の和:2062

約数の個数: 32

約数和(自身を含む): 40199040

約数和(自身を除く): 18463382

約数列:

[1, 2, 7, 14, 19, 38, 41, 82, 133, 266, 287, 574, 779, 1558, 1993, 3986, 5453, 10906, 13951, 27902, 37867, 75734, 81713, 163426, 265069, 530138, 571991, 1143982, 1552547, 3105094, 10867829, 21735658]

約数ペア:

[(1, 21735658), (2, 10867829), (7, 3105094), (14, 1552547), (19, 1143982), (38, 571991), (41, 530138), (82, 265069), (133, 163426), (266, 81713), (287, 75734), (574, 37867), (779, 27902), (1558, 13951), (1993, 10906), (3986, 5453)]