19661488

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{15959}}^1$

素因数の和:15985

約数の個数: 40

約数和(自身を含む): 47496960

約数和(自身を除く): 27835472

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 15959, 31918, 63836, 111713, 127672, 175549, 223426, 255344, 351098, 446852, 702196, 893704, 1228843, 1404392, 1787408, 2457686, 2808784, 4915372, 9830744, 19661488]

約数ペア:

[(1, 19661488), (2, 9830744), (4, 4915372), (7, 2808784), (8, 2457686), (11, 1787408), (14, 1404392), (16, 1228843), (22, 893704), (28, 702196), (44, 446852), (56, 351098), (77, 255344), (88, 223426), (112, 175549), (154, 127672), (176, 111713), (308, 63836), (616, 31918), (1232, 15959)]