18875227

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1021}}^1$

素因数の和:1186

約数の個数: 16

約数和(自身を含む): 22892800

約数和(自身を除く): 4017573

約数列:

[1, 7, 19, 133, 139, 973, 1021, 2641, 7147, 18487, 19399, 135793, 141919, 993433, 2696461, 18875227]

約数ペア:

[(1, 18875227), (7, 2696461), (19, 993433), (133, 141919), (139, 135793), (973, 19399), (1021, 18487), (2641, 7147)]