21403804947

素因数分解:

$3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{9350723}}^1$

素因数の和:9350842

約数の個数: 16

約数和(自身を含む): 32914548480

約数和(自身を除く): 11510743533

約数列:

[1, 3, 7, 21, 109, 327, 763, 2289, 9350723, 28052169, 65455061, 196365183, 1019228807, 3057686421, 7134601649, 21403804947]

約数ペア:

[(1, 21403804947), (3, 7134601649), (7, 3057686421), (21, 1019228807), (109, 196365183), (327, 65455061), (763, 28052169), (2289, 9350723)]