19980753

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{541}}^1\times {\mathrm{947}}^1$

素因数の和:1504

約数の個数: 16

約数和(自身を含む): 28773696

約数和(自身を除く): 8792943

約数列:

[1, 3, 13, 39, 541, 947, 1623, 2841, 7033, 12311, 21099, 36933, 512327, 1536981, 6660251, 19980753]

約数ペア:

[(1, 19980753), (3, 6660251), (13, 1536981), (39, 512327), (541, 36933), (947, 21099), (1623, 12311), (2841, 7033)]