20903428

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{57427}}^1$

素因数の和:57451

約数の個数: 24

約数和(自身を含む): 45023552

約数和(自身を除く): 24120124

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 57427, 114854, 229708, 401989, 746551, 803978, 1493102, 1607956, 2986204, 5225857, 10451714, 20903428]

約数ペア:

[(1, 20903428), (2, 10451714), (4, 5225857), (7, 2986204), (13, 1607956), (14, 1493102), (26, 803978), (28, 746551), (52, 401989), (91, 229708), (182, 114854), (364, 57427)]