19938338

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{631}}^1$

素因数の和:738

約数の個数: 32

約数和(自身を含む): 35735808

約数和(自身を除く): 15797470

約数列:

[1, 2, 7, 14, 37, 61, 74, 122, 259, 427, 518, 631, 854, 1262, 2257, 4417, 4514, 8834, 15799, 23347, 31598, 38491, 46694, 76982, 163429, 269437, 326858, 538874, 1424167, 2848334, 9969169, 19938338]

約数ペア:

[(1, 19938338), (2, 9969169), (7, 2848334), (14, 1424167), (37, 538874), (61, 326858), (74, 269437), (122, 163429), (259, 76982), (427, 46694), (518, 38491), (631, 31598), (854, 23347), (1262, 15799), (2257, 8834), (4417, 4514)]