20856772

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{751}}^1$

素因数の和:939

約数の個数: 24

約数和(自身を含む): 37521792

約数和(自身を除く): 16665020

約数列:

[1, 2, 4, 53, 106, 131, 212, 262, 524, 751, 1502, 3004, 6943, 13886, 27772, 39803, 79606, 98381, 159212, 196762, 393524, 5214193, 10428386, 20856772]

約数ペア:

[(1, 20856772), (2, 10428386), (4, 5214193), (53, 393524), (106, 196762), (131, 159212), (212, 98381), (262, 79606), (524, 39803), (751, 27772), (1502, 13886), (3004, 6943)]