20945852

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{563}}^1$

素因数の和:769

約数の個数: 24

約数和(自身を含む): 37521792

約数和(自身を除く): 16575940

約数列:

[1, 2, 4, 71, 131, 142, 262, 284, 524, 563, 1126, 2252, 9301, 18602, 37204, 39973, 73753, 79946, 147506, 159892, 295012, 5236463, 10472926, 20945852]

約数ペア:

[(1, 20945852), (2, 10472926), (4, 5236463), (71, 295012), (131, 159892), (142, 147506), (262, 79946), (284, 73753), (524, 39973), (563, 37204), (1126, 18602), (2252, 9301)]