20549958

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{557}}^1$

素因数の和:629

約数の個数: 64

約数和(自身を含む): 49496832

約数和(自身を除く): 28946874

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 43, 66, 78, 86, 129, 143, 258, 286, 429, 473, 557, 559, 858, 946, 1114, 1118, 1419, 1671, 1677, 2838, 3342, 3354, 6127, 6149, 7241, 12254, 12298, 14482, 18381, 18447, 21723, 23951, 36762, 36894, 43446, 47902, 71853, 79651, 143706, 159302, 238953, 263461, 311363, 477906, 526922, 622726, 790383, 934089, 1580766, 1868178, 3424993, 6849986, 10274979, 20549958]

約数ペア:

[(1, 20549958), (2, 10274979), (3, 6849986), (6, 3424993), (11, 1868178), (13, 1580766), (22, 934089), (26, 790383), (33, 622726), (39, 526922), (43, 477906), (66, 311363), (78, 263461), (86, 238953), (129, 159302), (143, 143706), (258, 79651), (286, 71853), (429, 47902), (473, 43446), (557, 36894), (559, 36762), (858, 23951), (946, 21723), (1114, 18447), (1118, 18381), (1419, 14482), (1671, 12298), (1677, 12254), (2838, 7241), (3342, 6149), (3354, 6127)]