20821226

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{193}}^1$

素因数の和:398

約数の個数: 32

約数和(自身を含む): 35199360

約数和(自身を除く): 14378134

約数列:

[1, 2, 17, 19, 34, 38, 167, 193, 323, 334, 386, 646, 2839, 3173, 3281, 3667, 5678, 6346, 6562, 7334, 32231, 53941, 62339, 64462, 107882, 124678, 547927, 612389, 1095854, 1224778, 10410613, 20821226]

約数ペア:

[(1, 20821226), (2, 10410613), (17, 1224778), (19, 1095854), (34, 612389), (38, 547927), (167, 124678), (193, 107882), (323, 64462), (334, 62339), (386, 53941), (646, 32231), (2839, 7334), (3173, 6562), (3281, 6346), (3667, 5678)]