21063784

素因数分解:

$2^3\times 7^1\times {\mathrm{227}}^1\times {\mathrm{1657}}^1$

素因数の和:1897

約数の個数: 32

約数和(自身を含む): 45362880

約数和(自身を除く): 24299096

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 227, 454, 908, 1589, 1657, 1816, 3178, 3314, 6356, 6628, 11599, 12712, 13256, 23198, 46396, 92792, 376139, 752278, 1504556, 2632973, 3009112, 5265946, 10531892, 21063784]

約数ペア:

[(1, 21063784), (2, 10531892), (4, 5265946), (7, 3009112), (8, 2632973), (14, 1504556), (28, 752278), (56, 376139), (227, 92792), (454, 46396), (908, 23198), (1589, 13256), (1657, 12712), (1816, 11599), (3178, 6628), (3314, 6356)]