20655513

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{397}}^1$

素因数の和:494

約数の個数: 32

約数和(自身を含む): 32094720

約数和(自身を除く): 11439207

約数列:

[1, 3, 9, 27, 41, 47, 123, 141, 369, 397, 423, 1107, 1191, 1269, 1927, 3573, 5781, 10719, 16277, 17343, 18659, 48831, 52029, 55977, 146493, 167931, 439479, 503793, 765019, 2295057, 6885171, 20655513]

約数ペア:

[(1, 20655513), (3, 6885171), (9, 2295057), (27, 765019), (41, 503793), (47, 439479), (123, 167931), (141, 146493), (369, 55977), (397, 52029), (423, 48831), (1107, 18659), (1191, 17343), (1269, 16277), (1927, 10719), (3573, 5781)]