21439886

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:336

約数の個数: 32

約数和(自身を含む): 35954688

約数和(自身を除く): 14514802

約数列:

[1, 2, 13, 26, 43, 86, 127, 151, 254, 302, 559, 1118, 1651, 1963, 3302, 3926, 5461, 6493, 10922, 12986, 19177, 38354, 70993, 84409, 141986, 168818, 249301, 498602, 824611, 1649222, 10719943, 21439886]

約数ペア:

[(1, 21439886), (2, 10719943), (13, 1649222), (26, 824611), (43, 498602), (86, 249301), (127, 168818), (151, 141986), (254, 84409), (302, 70993), (559, 38354), (1118, 19177), (1651, 12986), (1963, 10922), (3302, 6493), (3926, 5461)]