20740804497

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{991}}^1\times {\mathrm{4679}}^1$

素因数の和:5754

約数の個数: 48

約数和(自身を含む): 34763489280

約数和(自身を除く): 14022684783

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 991, 1491, 2973, 4473, 4679, 6937, 8919, 14037, 20811, 32753, 42111, 62433, 70361, 98259, 211083, 294777, 332209, 492527, 633249, 996627, 1477581, 2325463, 2989881, 4432743, 4636889, 6976389, 13910667, 20929167, 32458223, 41732001, 97374669, 292124007, 329219119, 987657357, 2304533833, 2962972071, 6913601499, 20740804497]

約数ペア:

[(1, 20740804497), (3, 6913601499), (7, 2962972071), (9, 2304533833), (21, 987657357), (63, 329219119), (71, 292124007), (213, 97374669), (497, 41732001), (639, 32458223), (991, 20929167), (1491, 13910667), (2973, 6976389), (4473, 4636889), (4679, 4432743), (6937, 2989881), (8919, 2325463), (14037, 1477581), (20811, 996627), (32753, 633249), (42111, 492527), (62433, 332209), (70361, 294777), (98259, 211083)]