21296028

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{10501}}^1$

素因数の和:10534

約数の個数: 36

約数和(自身を含む): 53812248

約数和(自身を除く): 32516220

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 338, 507, 676, 1014, 2028, 10501, 21002, 31503, 42004, 63006, 126012, 136513, 273026, 409539, 546052, 819078, 1638156, 1774669, 3549338, 5324007, 7098676, 10648014, 21296028]

約数ペア:

[(1, 21296028), (2, 10648014), (3, 7098676), (4, 5324007), (6, 3549338), (12, 1774669), (13, 1638156), (26, 819078), (39, 546052), (52, 409539), (78, 273026), (156, 136513), (169, 126012), (338, 63006), (507, 42004), (676, 31503), (1014, 21002), (2028, 10501)]