643861954

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{229459}}^1$

素因数の和:229545

約数の個数: 16

約数和(自身を含む): 1024309440

約数和(自身を除く): 380447486

約数列:

[1, 2, 23, 46, 61, 122, 1403, 2806, 229459, 458918, 5277557, 10555114, 13996999, 27993998, 321930977, 643861954]

約数ペア:

[(1, 643861954), (2, 321930977), (23, 27993998), (46, 13996999), (61, 10555114), (122, 5277557), (1403, 458918), (2806, 229459)]