19876961

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1697}}^1$

素因数の和:1780

約数の個数: 16

約数和(自身を含む): 23106384

約数和(自身を除く): 3229423

約数列:

[1, 13, 17, 53, 221, 689, 901, 1697, 11713, 22061, 28849, 89941, 375037, 1169233, 1528997, 19876961]

約数ペア:

[(1, 19876961), (13, 1528997), (17, 1169233), (53, 375037), (221, 89941), (689, 28849), (901, 22061), (1697, 11713)]