19969378

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:211

約数の個数: 48

約数和(自身を含む): 36523872

約数和(自身を除く): 16554494

約数列:

[1, 2, 11, 13, 22, 26, 41, 82, 131, 143, 169, 262, 286, 338, 451, 533, 902, 1066, 1441, 1703, 1859, 2882, 3406, 3718, 5371, 5863, 6929, 10742, 11726, 13858, 18733, 22139, 37466, 44278, 59081, 69823, 76219, 118162, 139646, 152438, 243529, 487058, 768053, 907699, 1536106, 1815398, 9984689, 19969378]

約数ペア:

[(1, 19969378), (2, 9984689), (11, 1815398), (13, 1536106), (22, 907699), (26, 768053), (41, 487058), (82, 243529), (131, 152438), (143, 139646), (169, 118162), (262, 76219), (286, 69823), (338, 59081), (451, 44278), (533, 37466), (902, 22139), (1066, 18733), (1441, 13858), (1703, 11726), (1859, 10742), (2882, 6929), (3406, 5863), (3718, 5371)]