21554001

素因数分解:

$3^2\times 7^1\times {\mathrm{359}}^1\times {\mathrm{953}}^1$

素因数の和:1325

約数の個数: 24

約数和(自身を含む): 35717760

約数和(自身を除く): 14163759

約数列:

[1, 3, 7, 9, 21, 63, 359, 953, 1077, 2513, 2859, 3231, 6671, 7539, 8577, 20013, 22617, 60039, 342127, 1026381, 2394889, 3079143, 7184667, 21554001]

約数ペア:

[(1, 21554001), (3, 7184667), (7, 3079143), (9, 2394889), (21, 1026381), (63, 342127), (359, 60039), (953, 22617), (1077, 20013), (2513, 8577), (2859, 7539), (3231, 6671)]