211709778841

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{83}}^2\times {\mathrm{109}}^1$

素因数の和:395

約数の個数: 72

約数和(自身を含む): 252494003520

約数和(自身を除く): 40784224679

約数列:

[1, 11, 19, 71, 83, 109, 209, 361, 781, 913, 1199, 1349, 1577, 2071, 3971, 5893, 6889, 7739, 9047, 14839, 17347, 22781, 25631, 29963, 39349, 64823, 75779, 85129, 99517, 111967, 130891, 147041, 171893, 281941, 329593, 432839, 489119, 642337, 750901, 1231637, 1439801, 1617451, 1890823, 2127373, 2486929, 2793779, 3265967, 5380309, 7065707, 8259911, 9293261, 12204403, 14267119, 23401103, 27356219, 30731569, 35925637, 53313971, 102225871, 134248433, 156938309, 176571959, 231883657, 271075261, 586453681, 1012965449, 1942291549, 2550720227, 2981827871, 11142619939, 19246343531, 211709778841]

約数ペア:

[(1, 211709778841), (11, 19246343531), (19, 11142619939), (71, 2981827871), (83, 2550720227), (109, 1942291549), (209, 1012965449), (361, 586453681), (781, 271075261), (913, 231883657), (1199, 176571959), (1349, 156938309), (1577, 134248433), (2071, 102225871), (3971, 53313971), (5893, 35925637), (6889, 30731569), (7739, 27356219), (9047, 23401103), (14839, 14267119), (17347, 12204403), (22781, 9293261), (25631, 8259911), (29963, 7065707), (39349, 5380309), (64823, 3265967), (75779, 2793779), (85129, 2486929), (99517, 2127373), (111967, 1890823), (130891, 1617451), (147041, 1439801), (171893, 1231637), (281941, 750901), (329593, 642337), (432839, 489119)]