21515994

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{51971}}^1$

素因数の和:52002

約数の個数: 24

約数和(自身を含む): 48645792

約数和(自身を除く): 27129798

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 414, 51971, 103942, 155913, 311826, 467739, 935478, 1195333, 2390666, 3585999, 7171998, 10757997, 21515994]

約数ペア:

[(1, 21515994), (2, 10757997), (3, 7171998), (6, 3585999), (9, 2390666), (18, 1195333), (23, 935478), (46, 467739), (69, 311826), (138, 155913), (207, 103942), (414, 51971)]