19976992

素因数分解:

$2^5\times 7^1\times {\mathrm{101}}^1\times {\mathrm{883}}^1$

素因数の和:1001

約数の個数: 48

約数和(自身を含む): 45444672

約数和(自身を除く): 25467680

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 101, 112, 202, 224, 404, 707, 808, 883, 1414, 1616, 1766, 2828, 3232, 3532, 5656, 6181, 7064, 11312, 12362, 14128, 22624, 24724, 28256, 49448, 89183, 98896, 178366, 197792, 356732, 624281, 713464, 1248562, 1426928, 2497124, 2853856, 4994248, 9988496, 19976992]

約数ペア:

[(1, 19976992), (2, 9988496), (4, 4994248), (7, 2853856), (8, 2497124), (14, 1426928), (16, 1248562), (28, 713464), (32, 624281), (56, 356732), (101, 197792), (112, 178366), (202, 98896), (224, 89183), (404, 49448), (707, 28256), (808, 24724), (883, 22624), (1414, 14128), (1616, 12362), (1766, 11312), (2828, 7064), (3232, 6181), (3532, 5656)]