20739572

素因数分解:

$2^2\times 7^1\times {\mathrm{409}}^1\times {\mathrm{1811}}^1$

素因数の和:2231

約数の個数: 24

約数和(自身を含む): 41603520

約数和(自身を除く): 20863948

約数列:

[1, 2, 4, 7, 14, 28, 409, 818, 1636, 1811, 2863, 3622, 5726, 7244, 11452, 12677, 25354, 50708, 740699, 1481398, 2962796, 5184893, 10369786, 20739572]

約数ペア:

[(1, 20739572), (2, 10369786), (4, 5184893), (7, 2962796), (14, 1481398), (28, 740699), (409, 50708), (818, 25354), (1636, 12677), (1811, 11452), (2863, 7244), (3622, 5726)]