21000859201

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{31249}}^1$

素因数の和:31469

約数の個数: 32

約数和(自身を含む): 26240000000

約数和(自身を除く): 5239140799

約数列:

[1, 7, 19, 31, 133, 163, 217, 589, 1141, 3097, 4123, 5053, 21679, 31249, 35371, 96007, 218743, 593731, 672049, 968719, 4156117, 5093587, 6781033, 18405661, 35655109, 96778153, 128839627, 157901197, 677447071, 1105308379, 3000122743, 21000859201]

約数ペア:

[(1, 21000859201), (7, 3000122743), (19, 1105308379), (31, 677447071), (133, 157901197), (163, 128839627), (217, 96778153), (589, 35655109), (1141, 18405661), (3097, 6781033), (4123, 5093587), (5053, 4156117), (21679, 968719), (31249, 672049), (35371, 593731), (96007, 218743)]