19871841

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{73}}^2\times {\mathrm{113}}^1$

素因数の和:273

約数の個数: 24

約数和(自身を含む): 29565216

約数和(自身を除く): 9693375

約数列:

[1, 3, 11, 33, 73, 113, 219, 339, 803, 1243, 2409, 3729, 5329, 8249, 15987, 24747, 58619, 90739, 175857, 272217, 602177, 1806531, 6623947, 19871841]

約数ペア:

[(1, 19871841), (3, 6623947), (11, 1806531), (33, 602177), (73, 272217), (113, 175857), (219, 90739), (339, 58619), (803, 24747), (1243, 15987), (2409, 8249), (3729, 5329)]