17881994

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1759}}^1$

素因数の和:1814

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 14051446

約数列:

[1, 2, 13, 17, 23, 26, 34, 46, 221, 299, 391, 442, 598, 782, 1759, 3518, 5083, 10166, 22867, 29903, 40457, 45734, 59806, 80914, 388739, 525941, 687769, 777478, 1051882, 1375538, 8940997, 17881994]

約数ペア:

[(1, 17881994), (2, 8940997), (13, 1375538), (17, 1051882), (23, 777478), (26, 687769), (34, 525941), (46, 388739), (221, 80914), (299, 59806), (391, 45734), (442, 40457), (598, 29903), (782, 22867), (1759, 10166), (3518, 5083)]