638943669

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{10687}}^1$

素因数の和:10786

約数の個数: 48

約数和(自身を含む): 1151567872

約数和(自身を除く): 512624203

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 73, 91, 117, 219, 273, 511, 657, 819, 949, 1533, 2847, 4599, 6643, 8541, 10687, 19929, 32061, 59787, 74809, 96183, 138931, 224427, 416793, 673281, 780151, 972517, 1250379, 2340453, 2917551, 5461057, 7021359, 8752653, 10141963, 16383171, 30425889, 49149513, 70993741, 91277667, 212981223, 638943669]

約数ペア:

[(1, 638943669), (3, 212981223), (7, 91277667), (9, 70993741), (13, 49149513), (21, 30425889), (39, 16383171), (63, 10141963), (73, 8752653), (91, 7021359), (117, 5461057), (219, 2917551), (273, 2340453), (511, 1250379), (657, 972517), (819, 780151), (949, 673281), (1533, 416793), (2847, 224427), (4599, 138931), (6643, 96183), (8541, 74809), (10687, 59787), (19929, 32061)]