208523819

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1621}}^1$

素因数の和:1715

約数の個数: 32

約数和(自身を含む): 269070336

約数和(自身を除く): 60546517

約数列:

[1, 7, 17, 23, 47, 119, 161, 329, 391, 799, 1081, 1621, 2737, 5593, 7567, 11347, 18377, 27557, 37283, 76187, 128639, 192899, 260981, 533309, 633811, 1295179, 1752301, 4436677, 9066253, 12266107, 29789117, 208523819]

約数ペア:

[(1, 208523819), (7, 29789117), (17, 12266107), (23, 9066253), (47, 4436677), (119, 1752301), (161, 1295179), (329, 633811), (391, 533309), (799, 260981), (1081, 192899), (1621, 128639), (2737, 76187), (5593, 37283), (7567, 27557), (11347, 18377)]