20157214

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^2$

素因数の和:205

約数の個数: 48

約数和(自身を含む): 40164480

約数和(自身を除く): 20007266

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 77, 83, 133, 154, 166, 209, 266, 418, 581, 913, 1162, 1463, 1577, 1826, 2926, 3154, 6391, 6889, 11039, 12782, 13778, 17347, 22078, 34694, 48223, 75779, 96446, 121429, 130891, 151558, 242858, 261782, 530453, 916237, 1060906, 1439801, 1832474, 2879602, 10078607, 20157214]

約数ペア:

[(1, 20157214), (2, 10078607), (7, 2879602), (11, 1832474), (14, 1439801), (19, 1060906), (22, 916237), (38, 530453), (77, 261782), (83, 242858), (133, 151558), (154, 130891), (166, 121429), (209, 96446), (266, 75779), (418, 48223), (581, 34694), (913, 22078), (1162, 17347), (1463, 13778), (1577, 12782), (1826, 11039), (2926, 6889), (3154, 6391)]