20756721

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{433}}^1$

素因数の和:513

約数の個数: 24

約数和(自身を含む): 30241120

約数和(自身を除く): 9484399

約数列:

[1, 3, 19, 29, 57, 87, 433, 551, 841, 1299, 1653, 2523, 8227, 12557, 15979, 24681, 37671, 47937, 238583, 364153, 715749, 1092459, 6918907, 20756721]

約数ペア:

[(1, 20756721), (3, 6918907), (19, 1092459), (29, 715749), (57, 364153), (87, 238583), (433, 47937), (551, 37671), (841, 24681), (1299, 15979), (1653, 12557), (2523, 8227)]