21836272

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{33287}}^1$

素因数の和:33336

約数の個数: 20

約数和(自身を含む): 43340976

約数和(自身を除く): 21504704

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 33287, 66574, 133148, 266296, 532592, 1364767, 2729534, 5459068, 10918136, 21836272]

約数ペア:

[(1, 21836272), (2, 10918136), (4, 5459068), (8, 2729534), (16, 1364767), (41, 532592), (82, 266296), (164, 133148), (328, 66574), (656, 33287)]