21818836

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{3203}}^1$

素因数の和:3351

約数の個数: 24

約数和(自身を含む): 41446944

約数和(自身を除く): 19628108

約数列:

[1, 2, 4, 13, 26, 52, 131, 262, 524, 1703, 3203, 3406, 6406, 6812, 12812, 41639, 83278, 166556, 419593, 839186, 1678372, 5454709, 10909418, 21818836]

約数ペア:

[(1, 21818836), (2, 10909418), (4, 5454709), (13, 1678372), (26, 839186), (52, 419593), (131, 166556), (262, 83278), (524, 41639), (1703, 12812), (3203, 6812), (3406, 6406)]