21558771

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3613}}^1$

素因数の和:3652

約数の個数: 32

約数和(自身を含む): 36429120

約数和(自身を除く): 14870349

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 117, 153, 221, 351, 459, 663, 1989, 3613, 5967, 10839, 32517, 46969, 61421, 97551, 140907, 184263, 422721, 552789, 798473, 1268163, 1658367, 2395419, 7186257, 21558771]

約数ペア:

[(1, 21558771), (3, 7186257), (9, 2395419), (13, 1658367), (17, 1268163), (27, 798473), (39, 552789), (51, 422721), (117, 184263), (153, 140907), (221, 97551), (351, 61421), (459, 46969), (663, 32517), (1989, 10839), (3613, 5967)]