19815054

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{311}}^1$

素因数の和:401

約数の個数: 64

約数和(自身を含む): 47803392

約数和(自身を除く): 27988338

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 41, 42, 74, 82, 111, 123, 222, 246, 259, 287, 311, 518, 574, 622, 777, 861, 933, 1517, 1554, 1722, 1866, 2177, 3034, 4354, 4551, 6531, 9102, 10619, 11507, 12751, 13062, 21238, 23014, 25502, 31857, 34521, 38253, 63714, 69042, 76506, 80549, 89257, 161098, 178514, 241647, 267771, 471787, 483294, 535542, 943574, 1415361, 2830722, 3302509, 6605018, 9907527, 19815054]

約数ペア:

[(1, 19815054), (2, 9907527), (3, 6605018), (6, 3302509), (7, 2830722), (14, 1415361), (21, 943574), (37, 535542), (41, 483294), (42, 471787), (74, 267771), (82, 241647), (111, 178514), (123, 161098), (222, 89257), (246, 80549), (259, 76506), (287, 69042), (311, 63714), (518, 38253), (574, 34521), (622, 31857), (777, 25502), (861, 23014), (933, 21238), (1517, 13062), (1554, 12751), (1722, 11507), (1866, 10619), (2177, 9102), (3034, 6531), (4354, 4551)]