291220319

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:176

約数の個数: 48

約数和(自身を含む): 361210752

約数和(自身を除く): 69990433

約数列:

[1, 13, 17, 23, 47, 53, 221, 299, 391, 529, 611, 689, 799, 901, 1081, 1219, 2491, 5083, 6877, 8993, 10387, 11713, 14053, 15847, 18377, 20723, 24863, 28037, 32383, 42347, 57293, 116909, 238901, 269399, 323219, 364481, 422671, 476629, 550511, 744809, 973981, 1317739, 5494723, 6196177, 12661753, 17130607, 22401563, 291220319]

約数ペア:

[(1, 291220319), (13, 22401563), (17, 17130607), (23, 12661753), (47, 6196177), (53, 5494723), (221, 1317739), (299, 973981), (391, 744809), (529, 550511), (611, 476629), (689, 422671), (799, 364481), (901, 323219), (1081, 269399), (1219, 238901), (2491, 116909), (5083, 57293), (6877, 42347), (8993, 32383), (10387, 28037), (11713, 24863), (14053, 20723), (15847, 18377)]