19964373

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{269}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 31570560

約数和(自身を除く): 11606187

約数列:

[1, 3, 11, 13, 33, 39, 143, 173, 269, 429, 519, 807, 1903, 2249, 2959, 3497, 5709, 6747, 8877, 10491, 24739, 38467, 46537, 74217, 115401, 139611, 511907, 604981, 1535721, 1814943, 6654791, 19964373]

約数ペア:

[(1, 19964373), (3, 6654791), (11, 1814943), (13, 1535721), (33, 604981), (39, 511907), (143, 139611), (173, 115401), (269, 74217), (429, 46537), (519, 38467), (807, 24739), (1903, 10491), (2249, 8877), (2959, 6747), (3497, 5709)]