21981674

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{509}}^1$

素因数の和:686

約数の個数: 32

約数和(自身を含む): 39070080

約数和(自身を除く): 17088406

約数列:

[1, 2, 11, 13, 22, 26, 143, 151, 286, 302, 509, 1018, 1661, 1963, 3322, 3926, 5599, 6617, 11198, 13234, 21593, 43186, 72787, 76859, 145574, 153718, 845449, 999167, 1690898, 1998334, 10990837, 21981674]

約数ペア:

[(1, 21981674), (2, 10990837), (11, 1998334), (13, 1690898), (22, 999167), (26, 845449), (143, 153718), (151, 145574), (286, 76859), (302, 72787), (509, 43186), (1018, 21593), (1661, 13234), (1963, 11198), (3322, 6617), (3926, 5599)]