20812976

素因数分解:

$2^4\times {\mathrm{23}}^2\times {\mathrm{2459}}^1$

素因数の和:2513

約数の個数: 30

約数和(自身を含む): 42171780

約数和(自身を除く): 21358804

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 529, 1058, 2116, 2459, 4232, 4918, 8464, 9836, 19672, 39344, 56557, 113114, 226228, 452456, 904912, 1300811, 2601622, 5203244, 10406488, 20812976]

約数ペア:

[(1, 20812976), (2, 10406488), (4, 5203244), (8, 2601622), (16, 1300811), (23, 904912), (46, 452456), (92, 226228), (184, 113114), (368, 56557), (529, 39344), (1058, 19672), (2116, 9836), (2459, 8464), (4232, 4918)]