20815142

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{337}}^1\times {\mathrm{347}}^1$

素因数の和:775

約数の個数: 16

約数和(自身を含む): 31758480

約数和(自身を除く): 10943338

約数列:

[1, 2, 89, 178, 337, 347, 674, 694, 29993, 30883, 59986, 61766, 116939, 233878, 10407571, 20815142]

約数ペア:

[(1, 20815142), (2, 10407571), (89, 233878), (178, 116939), (337, 61766), (347, 59986), (674, 30883), (694, 29993)]