2161901997

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{254731}}^1$

素因数の和:254801

約数の個数: 24

約数和(自身を含む): 3338008128

約数和(自身を除く): 1176106131

約数列:

[1, 3, 9, 23, 41, 69, 123, 207, 369, 943, 2829, 8487, 254731, 764193, 2292579, 5858813, 10443971, 17576439, 31331913, 52729317, 93995739, 240211333, 720633999, 2161901997]

約数ペア:

[(1, 2161901997), (3, 720633999), (9, 240211333), (23, 93995739), (41, 52729317), (69, 31331913), (123, 17576439), (207, 10443971), (369, 5858813), (943, 2292579), (2829, 764193), (8487, 254731)]