19729432

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{691}}^1$

素因数の和:823

約数の個数: 32

約数和(自身を含む): 38364480

約数和(自身を除く): 18635048

約数列:

[1, 2, 4, 8, 43, 83, 86, 166, 172, 332, 344, 664, 691, 1382, 2764, 3569, 5528, 7138, 14276, 28552, 29713, 57353, 59426, 114706, 118852, 229412, 237704, 458824, 2466179, 4932358, 9864716, 19729432]

約数ペア:

[(1, 19729432), (2, 9864716), (4, 4932358), (8, 2466179), (43, 458824), (83, 237704), (86, 229412), (166, 118852), (172, 114706), (332, 59426), (344, 57353), (664, 29713), (691, 28552), (1382, 14276), (2764, 7138), (3569, 5528)]