209899131

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{881}}^1$

素因数の和:1087

約数の個数: 32

約数和(自身を含む): 311169600

約数和(自身を除く): 101270469

約数列:

[1, 3, 13, 39, 41, 123, 149, 447, 533, 881, 1599, 1937, 2643, 5811, 6109, 11453, 18327, 34359, 36121, 79417, 108363, 131269, 238251, 393807, 469573, 1408719, 1706497, 5119491, 5382029, 16146087, 69966377, 209899131]

約数ペア:

[(1, 209899131), (3, 69966377), (13, 16146087), (39, 5382029), (41, 5119491), (123, 1706497), (149, 1408719), (447, 469573), (533, 393807), (881, 238251), (1599, 131269), (1937, 108363), (2643, 79417), (5811, 36121), (6109, 34359), (11453, 18327)]