20395809

素因数分解:

$3^2\times 7^3\times {\mathrm{6607}}^1$

素因数の和:6634

約数の個数: 24

約数和(自身を含む): 34361600

約数和(自身を除く): 13965791

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 6607, 19821, 46249, 59463, 138747, 323743, 416241, 971229, 2266201, 2913687, 6798603, 20395809]

約数ペア:

[(1, 20395809), (3, 6798603), (7, 2913687), (9, 2266201), (21, 971229), (49, 416241), (63, 323743), (147, 138747), (343, 59463), (441, 46249), (1029, 19821), (3087, 6607)]