21359954

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{2617}}^1$

素因数の和:2690

約数の個数: 32

約数和(自身を含む): 40715136

約数和(自身を除く): 19355182

約数列:

[1, 2, 7, 11, 14, 22, 53, 77, 106, 154, 371, 583, 742, 1166, 2617, 4081, 5234, 8162, 18319, 28787, 36638, 57574, 138701, 201509, 277402, 403018, 970907, 1525711, 1941814, 3051422, 10679977, 21359954]

約数ペア:

[(1, 21359954), (2, 10679977), (7, 3051422), (11, 1941814), (14, 1525711), (22, 970907), (53, 403018), (77, 277402), (106, 201509), (154, 138701), (371, 57574), (583, 36638), (742, 28787), (1166, 18319), (2617, 8162), (4081, 5234)]