19997103

素因数分解:

$3^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{4513}}^1$

素因数の和:4734

約数の個数: 16

約数和(自身を含む): 30622976

約数和(自身を除く): 10625873

約数列:

[1, 3, 7, 21, 211, 633, 1477, 4431, 4513, 13539, 31591, 94773, 952243, 2856729, 6665701, 19997103]

約数ペア:

[(1, 19997103), (3, 6665701), (7, 2856729), (21, 952243), (211, 94773), (633, 31591), (1477, 13539), (4431, 4513)]