20546865

素因数分解:

$3^7\times 5^1\times {\mathrm{1879}}^1$

素因数の和:1905

約数の個数: 32

約数和(自身を含む): 36998400

約数和(自身を除く): 16451535

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 1879, 2187, 3645, 5637, 9395, 10935, 16911, 28185, 50733, 84555, 152199, 253665, 456597, 760995, 1369791, 2282985, 4109373, 6848955, 20546865]

約数ペア:

[(1, 20546865), (3, 6848955), (5, 4109373), (9, 2282985), (15, 1369791), (27, 760995), (45, 456597), (81, 253665), (135, 152199), (243, 84555), (405, 50733), (729, 28185), (1215, 16911), (1879, 10935), (2187, 9395), (3645, 5637)]