212820909

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{25919}}^1$

素因数の和:25969

約数の個数: 32

約数和(自身を含む): 358318080

約数和(自身を除く): 145497171

約数列:

[1, 3, 7, 17, 21, 23, 51, 69, 119, 161, 357, 391, 483, 1173, 2737, 8211, 25919, 77757, 181433, 440623, 544299, 596137, 1321869, 1788411, 3084361, 4172959, 9253083, 10134329, 12518877, 30402987, 70940303, 212820909]

約数ペア:

[(1, 212820909), (3, 70940303), (7, 30402987), (17, 12518877), (21, 10134329), (23, 9253083), (51, 4172959), (69, 3084361), (119, 1788411), (161, 1321869), (357, 596137), (391, 544299), (483, 440623), (1173, 181433), (2737, 77757), (8211, 25919)]