221972211

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{211}}^1\times {\mathrm{829}}^1$

素因数の和:1096

約数の個数: 32

約数和(自身を含む): 337843200

約数和(自身を除く): 115870989

約数列:

[1, 3, 9, 27, 47, 141, 211, 423, 633, 829, 1269, 1899, 2487, 5697, 7461, 9917, 22383, 29751, 38963, 89253, 116889, 174919, 267759, 350667, 524757, 1052001, 1574271, 4722813, 8221193, 24663579, 73990737, 221972211]

約数ペア:

[(1, 221972211), (3, 73990737), (9, 24663579), (27, 8221193), (47, 4722813), (141, 1574271), (211, 1052001), (423, 524757), (633, 350667), (829, 267759), (1269, 174919), (1899, 116889), (2487, 89253), (5697, 38963), (7461, 29751), (9917, 22383)]