16561616

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{347}}^1$

素因数の和:531

約数の個数: 40

約数和(自身を含む): 34090080

約数和(自身を除く): 17528464

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 157, 304, 314, 347, 628, 694, 1256, 1388, 2512, 2776, 2983, 5552, 5966, 6593, 11932, 13186, 23864, 26372, 47728, 52744, 54479, 105488, 108958, 217916, 435832, 871664, 1035101, 2070202, 4140404, 8280808, 16561616]

約数ペア:

[(1, 16561616), (2, 8280808), (4, 4140404), (8, 2070202), (16, 1035101), (19, 871664), (38, 435832), (76, 217916), (152, 108958), (157, 105488), (304, 54479), (314, 52744), (347, 47728), (628, 26372), (694, 23864), (1256, 13186), (1388, 11932), (2512, 6593), (2776, 5966), (2983, 5552)]