19994128

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16229}}^1$

素因数の和:16255

約数の個数: 40

約数和(自身を含む): 48300480

約数和(自身を除く): 28306352

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 16229, 32458, 64916, 113603, 129832, 178519, 227206, 259664, 357038, 454412, 714076, 908824, 1249633, 1428152, 1817648, 2499266, 2856304, 4998532, 9997064, 19994128]

約数ペア:

[(1, 19994128), (2, 9997064), (4, 4998532), (7, 2856304), (8, 2499266), (11, 1817648), (14, 1428152), (16, 1249633), (22, 908824), (28, 714076), (44, 454412), (56, 357038), (77, 259664), (88, 227206), (112, 178519), (154, 129832), (176, 113603), (308, 64916), (616, 32458), (1232, 16229)]