215920376

素因数分解:

$2^3\times 7^1\times {\mathrm{139}}^1\times {\mathrm{27739}}^1$

素因数の和:27891

約数の個数: 32

約数和(自身を含む): 466032000

約数和(自身を除く): 250111624

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 139, 278, 556, 973, 1112, 1946, 3892, 7784, 27739, 55478, 110956, 194173, 221912, 388346, 776692, 1553384, 3855721, 7711442, 15422884, 26990047, 30845768, 53980094, 107960188, 215920376]

約数ペア:

[(1, 215920376), (2, 107960188), (4, 53980094), (7, 30845768), (8, 26990047), (14, 15422884), (28, 7711442), (56, 3855721), (139, 1553384), (278, 776692), (556, 388346), (973, 221912), (1112, 194173), (1946, 110956), (3892, 55478), (7784, 27739)]