19904159

素因数分解:

${\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{239}}^1$

素因数の和:430

約数の個数: 16

約数和(自身を含む): 22325760

約数和(自身を除く): 2421601

約数列:

[1, 11, 67, 113, 239, 737, 1243, 2629, 7571, 16013, 27007, 83281, 176143, 297077, 1809469, 19904159]

約数ペア:

[(1, 19904159), (11, 1809469), (67, 297077), (113, 176143), (239, 83281), (737, 27007), (1243, 16013), (2629, 7571)]