641957393

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1063}}^1$

素因数の和:1146

約数の個数: 48

約数和(自身を含む): 869449728

約数和(自身を除く): 227492335

約数列:

[1, 7, 11, 23, 31, 77, 121, 161, 217, 253, 341, 713, 847, 1063, 1771, 2387, 2783, 3751, 4991, 7441, 7843, 11693, 19481, 24449, 26257, 32953, 54901, 81851, 86273, 128623, 171143, 230671, 268939, 362483, 603911, 757919, 900361, 1882573, 2537381, 2958329, 3987313, 5305433, 8337109, 20708303, 27911191, 58359763, 91708199, 641957393]

約数ペア:

[(1, 641957393), (7, 91708199), (11, 58359763), (23, 27911191), (31, 20708303), (77, 8337109), (121, 5305433), (161, 3987313), (217, 2958329), (253, 2537381), (341, 1882573), (713, 900361), (847, 757919), (1063, 603911), (1771, 362483), (2387, 268939), (2783, 230671), (3751, 171143), (4991, 128623), (7441, 86273), (7843, 81851), (11693, 54901), (19481, 32953), (24449, 26257)]