21739553

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:173

約数の個数: 32

約数和(自身を含む): 26611200

約数和(自身を除く): 4871647

約数列:

[1, 11, 19, 41, 43, 59, 209, 451, 473, 649, 779, 817, 1121, 1763, 2419, 2537, 8569, 8987, 12331, 19393, 26609, 27907, 33497, 45961, 48203, 104017, 368467, 505571, 530233, 1144187, 1976323, 21739553]

約数ペア:

[(1, 21739553), (11, 1976323), (19, 1144187), (41, 530233), (43, 505571), (59, 368467), (209, 104017), (451, 48203), (473, 45961), (649, 33497), (779, 27907), (817, 26609), (1121, 19393), (1763, 12331), (2419, 8987), (2537, 8569)]