20217202978

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{37537}}^1$

素因数の和:37667

約数の個数: 64

約数和(自身を含む): 38400473088

約数和(自身を除く): 18183270110

約数列:

[1, 2, 7, 14, 17, 31, 34, 62, 73, 119, 146, 217, 238, 434, 511, 527, 1022, 1054, 1241, 2263, 2482, 3689, 4526, 7378, 8687, 15841, 17374, 31682, 37537, 38471, 75074, 76942, 262759, 269297, 525518, 538594, 638129, 1163647, 1276258, 2327294, 2740201, 4466903, 5480402, 8145529, 8933806, 16291058, 19181407, 19781999, 38362814, 39563998, 46583417, 84946231, 93166834, 138473993, 169892462, 276947986, 326083919, 594623617, 652167838, 1189247234, 1444085927, 2888171854, 10108601489, 20217202978]

約数ペア:

[(1, 20217202978), (2, 10108601489), (7, 2888171854), (14, 1444085927), (17, 1189247234), (31, 652167838), (34, 594623617), (62, 326083919), (73, 276947986), (119, 169892462), (146, 138473993), (217, 93166834), (238, 84946231), (434, 46583417), (511, 39563998), (527, 38362814), (1022, 19781999), (1054, 19181407), (1241, 16291058), (2263, 8933806), (2482, 8145529), (3689, 5480402), (4526, 4466903), (7378, 2740201), (8687, 2327294), (15841, 1276258), (17374, 1163647), (31682, 638129), (37537, 538594), (38471, 525518), (75074, 269297), (76942, 262759)]