21057773

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1669}}^1$

素因数の和:1748

約数の個数: 16

約数和(自身を含む): 24368640

約数和(自身を除く): 3310867

約数列:

[1, 11, 31, 37, 341, 407, 1147, 1669, 12617, 18359, 51739, 61753, 569129, 679283, 1914343, 21057773]

約数ペア:

[(1, 21057773), (11, 1914343), (31, 679283), (37, 569129), (341, 61753), (407, 51739), (1147, 18359), (1669, 12617)]