19197178

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:299

約数の個数: 64

約数和(自身を含む): 39739392

約数和(自身を除く): 20542214

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 43, 77, 86, 91, 143, 154, 182, 223, 286, 301, 446, 473, 559, 602, 946, 1001, 1118, 1561, 2002, 2453, 2899, 3122, 3311, 3913, 4906, 5798, 6149, 6622, 7826, 9589, 12298, 17171, 19178, 20293, 31889, 34342, 40586, 43043, 63778, 67123, 86086, 105479, 124657, 134246, 210958, 223223, 249314, 446446, 738353, 872599, 1371227, 1476706, 1745198, 2742454, 9598589, 19197178]

約数ペア:

[(1, 19197178), (2, 9598589), (7, 2742454), (11, 1745198), (13, 1476706), (14, 1371227), (22, 872599), (26, 738353), (43, 446446), (77, 249314), (86, 223223), (91, 210958), (143, 134246), (154, 124657), (182, 105479), (223, 86086), (286, 67123), (301, 63778), (446, 43043), (473, 40586), (559, 34342), (602, 31889), (946, 20293), (1001, 19178), (1118, 17171), (1561, 12298), (2002, 9589), (2453, 7826), (2899, 6622), (3122, 6149), (3311, 5798), (3913, 4906)]