20391904

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{49019}}^1$

素因数の和:49042

約数の個数: 24

約数和(自身を含む): 43235640

約数和(自身を除く): 22843736

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 49019, 98038, 196076, 392152, 637247, 784304, 1274494, 1568608, 2548988, 5097976, 10195952, 20391904]

約数ペア:

[(1, 20391904), (2, 10195952), (4, 5097976), (8, 2548988), (13, 1568608), (16, 1274494), (26, 784304), (32, 637247), (52, 392152), (104, 196076), (208, 98038), (416, 49019)]