217873828

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{16421}}^1$

素因数の和:16563

約数の個数: 24

約数和(自身を含む): 397281024

約数和(自身を除く): 179407196

約数列:

[1, 2, 4, 31, 62, 107, 124, 214, 428, 3317, 6634, 13268, 16421, 32842, 65684, 509051, 1018102, 1757047, 2036204, 3514094, 7028188, 54468457, 108936914, 217873828]

約数ペア:

[(1, 217873828), (2, 108936914), (4, 54468457), (31, 7028188), (62, 3514094), (107, 2036204), (124, 1757047), (214, 1018102), (428, 509051), (3317, 65684), (6634, 32842), (13268, 16421)]