19801384

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{17807}}^1$

素因数の和:17952

約数の個数: 16

約数和(自身を含む): 37396800

約数和(自身を除く): 17595416

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 17807, 35614, 71228, 142456, 2475173, 4950346, 9900692, 19801384]

約数ペア:

[(1, 19801384), (2, 9900692), (4, 4950346), (8, 2475173), (139, 142456), (278, 71228), (556, 35614), (1112, 17807)]