21582385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{1087}}^1$

素因数の和:1141

約数の個数: 24

約数和(自身を含む): 29846016

約数和(自身を除く): 8263631

約数列:

[1, 5, 11, 19, 55, 95, 209, 361, 1045, 1087, 1805, 3971, 5435, 11957, 19855, 20653, 59785, 103265, 227183, 392407, 1135915, 1962035, 4316477, 21582385]

約数ペア:

[(1, 21582385), (5, 4316477), (11, 1962035), (19, 1135915), (55, 392407), (95, 227183), (209, 103265), (361, 59785), (1045, 20653), (1087, 19855), (1805, 11957), (3971, 5435)]