20648272

素因数分解:

$2^4\times {\mathrm{521}}^1\times {\mathrm{2477}}^1$

素因数の和:3006

約数の個数: 20

約数和(自身を含む): 40098996

約数和(自身を除く): 19450724

約数列:

[1, 2, 4, 8, 16, 521, 1042, 2084, 2477, 4168, 4954, 8336, 9908, 19816, 39632, 1290517, 2581034, 5162068, 10324136, 20648272]

約数ペア:

[(1, 20648272), (2, 10324136), (4, 5162068), (8, 2581034), (16, 1290517), (521, 39632), (1042, 19816), (2084, 9908), (2477, 8336), (4168, 4954)]