21438637636

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{31}}^2\times {\mathrm{61}}^1\times {\mathrm{541}}^1$

素因数の和:694

約数の個数: 108

約数和(自身を含む): 42745396932

約数和(自身を除く): 21306759296

約数列:

[1, 2, 4, 13, 26, 31, 52, 61, 62, 122, 124, 169, 244, 338, 403, 541, 676, 793, 806, 961, 1082, 1586, 1612, 1891, 1922, 2164, 3172, 3782, 3844, 5239, 7033, 7564, 10309, 10478, 12493, 14066, 16771, 20618, 20956, 24583, 24986, 28132, 33001, 33542, 41236, 49166, 49972, 58621, 66002, 67084, 91429, 98332, 117242, 132004, 162409, 182858, 218023, 234484, 319579, 324818, 365716, 429013, 436046, 519901, 639158, 649636, 762073, 858026, 872092, 1023031, 1039802, 1278316, 1524146, 1716052, 2046062, 2079604, 2834299, 3048292, 4092124, 5577169, 5668598, 6758713, 9906949, 11154338, 11337196, 13299403, 13517426, 19813898, 22308676, 26598806, 27034852, 31713961, 39627796, 53197612, 63427922, 87863269, 126855844, 172892239, 175726538, 345784478, 351453076, 412281493, 691568956, 824562986, 1649125972, 5359659409, 10719318818, 21438637636]

約数ペア:

[(1, 21438637636), (2, 10719318818), (4, 5359659409), (13, 1649125972), (26, 824562986), (31, 691568956), (52, 412281493), (61, 351453076), (62, 345784478), (122, 175726538), (124, 172892239), (169, 126855844), (244, 87863269), (338, 63427922), (403, 53197612), (541, 39627796), (676, 31713961), (793, 27034852), (806, 26598806), (961, 22308676), (1082, 19813898), (1586, 13517426), (1612, 13299403), (1891, 11337196), (1922, 11154338), (2164, 9906949), (3172, 6758713), (3782, 5668598), (3844, 5577169), (5239, 4092124), (7033, 3048292), (7564, 2834299), (10309, 2079604), (10478, 2046062), (12493, 1716052), (14066, 1524146), (16771, 1278316), (20618, 1039802), (20956, 1023031), (24583, 872092), (24986, 858026), (28132, 762073), (33001, 649636), (33542, 639158), (41236, 519901), (49166, 436046), (49972, 429013), (58621, 365716), (66002, 324818), (67084, 319579), (91429, 234484), (98332, 218023), (117242, 182858), (132004, 162409)]