21836007

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{421}}^1$

素因数の和:560

約数の個数: 32

約数和(自身を含む): 34637760

約数和(自身を除く): 12801753

約数列:

[1, 3, 9, 17, 27, 51, 113, 153, 339, 421, 459, 1017, 1263, 1921, 3051, 3789, 5763, 7157, 11367, 17289, 21471, 47573, 51867, 64413, 142719, 193239, 428157, 808741, 1284471, 2426223, 7278669, 21836007]

約数ペア:

[(1, 21836007), (3, 7278669), (9, 2426223), (17, 1284471), (27, 808741), (51, 428157), (113, 193239), (153, 142719), (339, 64413), (421, 51867), (459, 47573), (1017, 21471), (1263, 17289), (1921, 11367), (3051, 7157), (3789, 5763)]