21490546

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{2633}}^1$

素因数の和:2706

約数の個数: 32

約数和(自身を含む): 40963968

約数和(自身を除く): 19473422

約数列:

[1, 2, 7, 11, 14, 22, 53, 77, 106, 154, 371, 583, 742, 1166, 2633, 4081, 5266, 8162, 18431, 28963, 36862, 57926, 139549, 202741, 279098, 405482, 976843, 1535039, 1953686, 3070078, 10745273, 21490546]

約数ペア:

[(1, 21490546), (2, 10745273), (7, 3070078), (11, 1953686), (14, 1535039), (22, 976843), (53, 405482), (77, 279098), (106, 202741), (154, 139549), (371, 57926), (583, 36862), (742, 28963), (1166, 18431), (2633, 8162), (4081, 5266)]