20218768

素因数分解:

$2^4\times {\mathrm{271}}^1\times {\mathrm{4663}}^1$

素因数の和:4942

約数の個数: 20

約数和(自身を含む): 39326848

約数和(自身を除く): 19108080

約数列:

[1, 2, 4, 8, 16, 271, 542, 1084, 2168, 4336, 4663, 9326, 18652, 37304, 74608, 1263673, 2527346, 5054692, 10109384, 20218768]

約数ペア:

[(1, 20218768), (2, 10109384), (4, 5054692), (8, 2527346), (16, 1263673), (271, 74608), (542, 37304), (1084, 18652), (2168, 9326), (4336, 4663)]