18929121831

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{2917}}^1$

素因数の和:3045

約数の個数: 72

約数和(自身を含む): 30207602880

約数和(自身を除く): 11278481049

約数列:

[1, 3, 9, 23, 29, 47, 69, 87, 141, 207, 261, 423, 529, 667, 1081, 1363, 1587, 2001, 2917, 3243, 4089, 4761, 6003, 8751, 9729, 12267, 15341, 24863, 26253, 31349, 46023, 67091, 74589, 84593, 94047, 137099, 138069, 201273, 223767, 253779, 282141, 411297, 603819, 721027, 761337, 1233891, 1543093, 1945639, 2163081, 3153277, 3975871, 4629279, 5836917, 6489243, 9459831, 11927613, 13887837, 17510751, 28379493, 35782839, 44749697, 72525371, 91445033, 134249091, 217576113, 274335099, 402747273, 652728339, 823005297, 2103235759, 6309707277, 18929121831]

約数ペア:

[(1, 18929121831), (3, 6309707277), (9, 2103235759), (23, 823005297), (29, 652728339), (47, 402747273), (69, 274335099), (87, 217576113), (141, 134249091), (207, 91445033), (261, 72525371), (423, 44749697), (529, 35782839), (667, 28379493), (1081, 17510751), (1363, 13887837), (1587, 11927613), (2001, 9459831), (2917, 6489243), (3243, 5836917), (4089, 4629279), (4761, 3975871), (6003, 3153277), (8751, 2163081), (9729, 1945639), (12267, 1543093), (15341, 1233891), (24863, 761337), (26253, 721027), (31349, 603819), (46023, 411297), (67091, 282141), (74589, 253779), (84593, 223767), (94047, 201273), (137099, 138069)]