21256432

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{18199}}^1$

素因数の和:18280

約数の個数: 20

約数和(自身を含む): 41750800

約数和(自身を除く): 20494368

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 18199, 36398, 72796, 145592, 291184, 1328527, 2657054, 5314108, 10628216, 21256432]

約数ペア:

[(1, 21256432), (2, 10628216), (4, 5314108), (8, 2657054), (16, 1328527), (73, 291184), (146, 145592), (292, 72796), (584, 36398), (1168, 18199)]