21568029

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{8087}}^1$

素因数の和:8224

約数の個数: 16

約数和(自身を含む): 33128448

約数和(自身を除く): 11560419

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 8087, 24261, 56609, 169827, 1027049, 3081147, 7189343, 21568029]

約数ペア:

[(1, 21568029), (3, 7189343), (7, 3081147), (21, 1027049), (127, 169827), (381, 56609), (889, 24261), (2667, 8087)]