20197736

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1237}}^1$

素因数の和:1413

約数の個数: 32

約数和(自身を含む): 41076840

約数和(自身を除く): 20879104

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 157, 314, 628, 1237, 1256, 2041, 2474, 4082, 4948, 8164, 9896, 16081, 16328, 32162, 64324, 128648, 194209, 388418, 776836, 1553672, 2524717, 5049434, 10098868, 20197736]

約数ペア:

[(1, 20197736), (2, 10098868), (4, 5049434), (8, 2524717), (13, 1553672), (26, 776836), (52, 388418), (104, 194209), (157, 128648), (314, 64324), (628, 32162), (1237, 16328), (1256, 16081), (2041, 9896), (2474, 8164), (4082, 4948)]