20057947

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{971}}^1$

素因数の和:1218

約数の個数: 16

約数和(自身を含む): 24820992

約数和(自身を除く): 4763045

約数列:

[1, 7, 13, 91, 227, 971, 1589, 2951, 6797, 12623, 20657, 88361, 220417, 1542919, 2865421, 20057947]

約数ペア:

[(1, 20057947), (7, 2865421), (13, 1542919), (91, 220417), (227, 88361), (971, 20657), (1589, 12623), (2951, 6797)]