19968232

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2309}}^1$

素因数の和:2385

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 19948568

約数列:

[1, 2, 4, 8, 23, 46, 47, 92, 94, 184, 188, 376, 1081, 2162, 2309, 4324, 4618, 8648, 9236, 18472, 53107, 106214, 108523, 212428, 217046, 424856, 434092, 868184, 2496029, 4992058, 9984116, 19968232]

約数ペア:

[(1, 19968232), (2, 9984116), (4, 4992058), (8, 2496029), (23, 868184), (46, 434092), (47, 424856), (92, 217046), (94, 212428), (184, 108523), (188, 106214), (376, 53107), (1081, 18472), (2162, 9236), (2309, 8648), (4324, 4618)]