645241954

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2003857}}^1$

素因数の和:2003889

約数の個数: 16

約数和(自身を含む): 1154222208

約数和(自身を除く): 508980254

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 2003857, 4007714, 14026999, 28053998, 46088711, 92177422, 322620977, 645241954]

約数ペア:

[(1, 645241954), (2, 322620977), (7, 92177422), (14, 46088711), (23, 28053998), (46, 14026999), (161, 4007714), (322, 2003857)]