20957968

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{56951}}^1$

素因数の和:56982

約数の個数: 20

約数和(自身を含む): 42372288

約数和(自身を除く): 21414320

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 56951, 113902, 227804, 455608, 911216, 1309873, 2619746, 5239492, 10478984, 20957968]

約数ペア:

[(1, 20957968), (2, 10478984), (4, 5239492), (8, 2619746), (16, 1309873), (23, 911216), (46, 455608), (92, 227804), (184, 113902), (368, 56951)]