21037142

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79087}}^1$

素因数の和:79115

約数の個数: 16

約数和(自身を含む): 37962240

約数和(自身を除く): 16925098

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 79087, 158174, 553609, 1107218, 1502653, 3005306, 10518571, 21037142]

約数ペア:

[(1, 21037142), (2, 10518571), (7, 3005306), (14, 1502653), (19, 1107218), (38, 553609), (133, 158174), (266, 79087)]