20807872

素因数分解:

$2^6\times {\mathrm{43}}^1\times {\mathrm{7561}}^1$

素因数の和:7616

約数の個数: 28

約数和(自身を含む): 42256456

約数和(自身を除く): 21448584

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 172, 344, 688, 1376, 2752, 7561, 15122, 30244, 60488, 120976, 241952, 325123, 483904, 650246, 1300492, 2600984, 5201968, 10403936, 20807872]

約数ペア:

[(1, 20807872), (2, 10403936), (4, 5201968), (8, 2600984), (16, 1300492), (32, 650246), (43, 483904), (64, 325123), (86, 241952), (172, 120976), (344, 60488), (688, 30244), (1376, 15122), (2752, 7561)]