21780032

素因数分解:

$2^6\times {\mathrm{53}}^1\times {\mathrm{6421}}^1$

素因数の和:6486

約数の個数: 28

約数和(自身を含む): 44042076

約数和(自身を除く): 22262044

約数列:

[1, 2, 4, 8, 16, 32, 53, 64, 106, 212, 424, 848, 1696, 3392, 6421, 12842, 25684, 51368, 102736, 205472, 340313, 410944, 680626, 1361252, 2722504, 5445008, 10890016, 21780032]

約数ペア:

[(1, 21780032), (2, 10890016), (4, 5445008), (8, 2722504), (16, 1361252), (32, 680626), (53, 410944), (64, 340313), (106, 205472), (212, 102736), (424, 51368), (848, 25684), (1696, 12842), (3392, 6421)]