19666820

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9547}}^1$

素因数の和:9659

約数の個数: 24

約数和(自身を含む): 41705664

約数和(自身を除く): 22038844

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9547, 19094, 38188, 47735, 95470, 190940, 983341, 1966682, 3933364, 4916705, 9833410, 19666820]

約数ペア:

[(1, 19666820), (2, 9833410), (4, 4916705), (5, 3933364), (10, 1966682), (20, 983341), (103, 190940), (206, 95470), (412, 47735), (515, 38188), (1030, 19094), (2060, 9547)]