21959641

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:177

約数の個数: 32

約数和(自身を含む): 26853120

約数和(自身を除く): 4893479

約数列:

[1, 11, 23, 29, 41, 73, 253, 319, 451, 667, 803, 943, 1189, 1679, 2117, 2993, 7337, 10373, 13079, 18469, 23287, 27347, 32923, 48691, 68839, 86797, 300817, 535601, 757229, 954767, 1996331, 21959641]

約数ペア:

[(1, 21959641), (11, 1996331), (23, 954767), (29, 757229), (41, 535601), (73, 300817), (253, 86797), (319, 68839), (451, 48691), (667, 32923), (803, 27347), (943, 23287), (1189, 18469), (1679, 13079), (2117, 10373), (2993, 7337)]