19905488

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{54091}}^1$

素因数の和:54122

約数の個数: 20

約数和(自身を含む): 40244448

約数和(自身を除く): 20338960

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 54091, 108182, 216364, 432728, 865456, 1244093, 2488186, 4976372, 9952744, 19905488]

約数ペア:

[(1, 19905488), (2, 9952744), (4, 4976372), (8, 2488186), (16, 1244093), (23, 865456), (46, 432728), (92, 216364), (184, 108182), (368, 54091)]