20767916

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{5471}}^1$

素因数の和:5561

約数の個数: 24

約数和(自身を含む): 39682944

約数和(自身を除く): 18915028

約数列:

[1, 2, 4, 13, 26, 52, 73, 146, 292, 949, 1898, 3796, 5471, 10942, 21884, 71123, 142246, 284492, 399383, 798766, 1597532, 5191979, 10383958, 20767916]

約数ペア:

[(1, 20767916), (2, 10383958), (4, 5191979), (13, 1597532), (26, 798766), (52, 399383), (73, 284492), (146, 142246), (292, 71123), (949, 21884), (1898, 10942), (3796, 5471)]