19838555

素因数分解:

$5^1\times {\mathrm{11}}^4\times {\mathrm{271}}^1$

素因数の和:320

約数の個数: 20

約数和(自身を含む): 26283360

約数和(自身を除く): 6444805

約数列:

[1, 5, 11, 55, 121, 271, 605, 1331, 1355, 2981, 6655, 14641, 14905, 32791, 73205, 163955, 360701, 1803505, 3967711, 19838555]

約数ペア:

[(1, 19838555), (5, 3967711), (11, 1803505), (55, 360701), (121, 163955), (271, 73205), (605, 32791), (1331, 14905), (1355, 14641), (2981, 6655)]