20601399

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 37545984

約数和(自身を除く): 16944585

約数列:

[1, 3, 7, 13, 17, 21, 23, 39, 51, 69, 91, 119, 161, 193, 221, 273, 299, 357, 391, 483, 579, 663, 897, 1173, 1351, 1547, 2093, 2509, 2737, 3281, 4053, 4439, 4641, 5083, 6279, 7527, 8211, 9843, 13317, 15249, 17563, 22967, 31073, 35581, 42653, 52689, 57707, 68901, 75463, 93219, 106743, 127959, 173121, 226389, 298571, 403949, 528241, 895713, 981019, 1211847, 1584723, 2943057, 6867133, 20601399]

約数ペア:

[(1, 20601399), (3, 6867133), (7, 2943057), (13, 1584723), (17, 1211847), (21, 981019), (23, 895713), (39, 528241), (51, 403949), (69, 298571), (91, 226389), (119, 173121), (161, 127959), (193, 106743), (221, 93219), (273, 75463), (299, 68901), (357, 57707), (391, 52689), (483, 42653), (579, 35581), (663, 31073), (897, 22967), (1173, 17563), (1351, 15249), (1547, 13317), (2093, 9843), (2509, 8211), (2737, 7527), (3281, 6279), (4053, 5083), (4439, 4641)]