20525421

素因数分解:

$3^1\times 7^1\times {\mathrm{619}}^1\times {\mathrm{1579}}^1$

素因数の和:2208

約数の個数: 16

約数和(自身を含む): 31347200

約数和(自身を除く): 10821779

約数列:

[1, 3, 7, 21, 619, 1579, 1857, 4333, 4737, 11053, 12999, 33159, 977401, 2932203, 6841807, 20525421]

約数ペア:

[(1, 20525421), (3, 6841807), (7, 2932203), (21, 977401), (619, 33159), (1579, 12999), (1857, 11053), (4333, 4737)]