20986424

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{587}}^1$

素因数の和:743

約数の個数: 32

約数和(自身を含む): 40748400

約数和(自身を除く): 19761976

約数列:

[1, 2, 4, 8, 41, 82, 109, 164, 218, 328, 436, 587, 872, 1174, 2348, 4469, 4696, 8938, 17876, 24067, 35752, 48134, 63983, 96268, 127966, 192536, 255932, 511864, 2623303, 5246606, 10493212, 20986424]

約数ペア:

[(1, 20986424), (2, 10493212), (4, 5246606), (8, 2623303), (41, 511864), (82, 255932), (109, 192536), (164, 127966), (218, 96268), (328, 63983), (436, 48134), (587, 35752), (872, 24067), (1174, 17876), (2348, 8938), (4469, 4696)]