21003423

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{167}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 33094656

約数和(自身を除く): 12091233

約数列:

[1, 3, 7, 21, 53, 113, 159, 167, 339, 371, 501, 791, 1113, 1169, 2373, 3507, 5989, 8851, 17967, 18871, 26553, 41923, 56613, 61957, 125769, 132097, 185871, 396291, 1000163, 3000489, 7001141, 21003423]

約数ペア:

[(1, 21003423), (3, 7001141), (7, 3000489), (21, 1000163), (53, 396291), (113, 185871), (159, 132097), (167, 125769), (339, 61957), (371, 56613), (501, 41923), (791, 26553), (1113, 18871), (1169, 17967), (2373, 8851), (3507, 5989)]