20952471

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1$

素因数の和:375

約数の個数: 32

約数和(自身を含む): 31080960

約数和(自身を除く): 10128489

約数列:

[1, 3, 23, 29, 37, 69, 87, 111, 283, 667, 849, 851, 1073, 2001, 2553, 3219, 6509, 8207, 10471, 19527, 24621, 24679, 31413, 74037, 188761, 240833, 303659, 566283, 722499, 910977, 6984157, 20952471]

約数ペア:

[(1, 20952471), (3, 6984157), (23, 910977), (29, 722499), (37, 566283), (69, 303659), (87, 240833), (111, 188761), (283, 74037), (667, 31413), (849, 24679), (851, 24621), (1073, 19527), (2001, 10471), (2553, 8207), (3219, 6509)]