21420212

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{16787}}^1$

素因数の和:16831

約数の個数: 24

約数和(自身を含む): 42305760

約数和(自身を除く): 20885548

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 116, 319, 638, 1276, 16787, 33574, 67148, 184657, 369314, 486823, 738628, 973646, 1947292, 5355053, 10710106, 21420212]

約数ペア:

[(1, 21420212), (2, 10710106), (4, 5355053), (11, 1947292), (22, 973646), (29, 738628), (44, 486823), (58, 369314), (116, 184657), (319, 67148), (638, 33574), (1276, 16787)]