21502156

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{2099}}^1$

素因数の和:2313

約数の個数: 24

約数和(自身を含む): 40748400

約数和(自身を除く): 19246244

約数列:

[1, 2, 4, 13, 26, 52, 197, 394, 788, 2099, 2561, 4198, 5122, 8396, 10244, 27287, 54574, 109148, 413503, 827006, 1654012, 5375539, 10751078, 21502156]

約数ペア:

[(1, 21502156), (2, 10751078), (4, 5375539), (13, 1654012), (26, 827006), (52, 413503), (197, 109148), (394, 54574), (788, 27287), (2099, 10244), (2561, 8396), (4198, 5122)]