20787998

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{5869}}^1$

素因数の和:5912

約数の個数: 32

約数和(自身を含む): 40573440

約数和(自身を除く): 19785442

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 77, 154, 161, 253, 322, 506, 1771, 3542, 5869, 11738, 41083, 64559, 82166, 129118, 134987, 269974, 451913, 903826, 944909, 1484857, 1889818, 2969714, 10393999, 20787998]

約数ペア:

[(1, 20787998), (2, 10393999), (7, 2969714), (11, 1889818), (14, 1484857), (22, 944909), (23, 903826), (46, 451913), (77, 269974), (154, 134987), (161, 129118), (253, 82166), (322, 64559), (506, 41083), (1771, 11738), (3542, 5869)]