20570187

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{991}}^1$

素因数の和:1059

約数の個数: 32

約数和(自身を含む): 32569344

約数和(自身を除く): 11999157

約数列:

[1, 3, 11, 17, 33, 37, 51, 111, 187, 407, 561, 629, 991, 1221, 1887, 2973, 6919, 10901, 16847, 20757, 32703, 36667, 50541, 110001, 185317, 403337, 555951, 623339, 1210011, 1870017, 6856729, 20570187]

約数ペア:

[(1, 20570187), (3, 6856729), (11, 1870017), (17, 1210011), (33, 623339), (37, 555951), (51, 403337), (111, 185317), (187, 110001), (407, 50541), (561, 36667), (629, 32703), (991, 20757), (1221, 16847), (1887, 10901), (2973, 6919)]