201721366

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{971}}^1$

素因数の和:1081

約数の個数: 64

約数和(自身を含む): 403107840

約数和(自身を除く): 201386474

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 71, 77, 133, 142, 154, 209, 266, 418, 497, 781, 971, 994, 1349, 1463, 1562, 1942, 2698, 2926, 5467, 6797, 9443, 10681, 10934, 13594, 14839, 18449, 18886, 21362, 29678, 36898, 68941, 74767, 103873, 129143, 137882, 149534, 202939, 207746, 258286, 405878, 482587, 758351, 965174, 1309879, 1420573, 1516702, 2619758, 2841146, 5308457, 9169153, 10616914, 14408669, 18338306, 28817338, 100860683, 201721366]

約数ペア:

[(1, 201721366), (2, 100860683), (7, 28817338), (11, 18338306), (14, 14408669), (19, 10616914), (22, 9169153), (38, 5308457), (71, 2841146), (77, 2619758), (133, 1516702), (142, 1420573), (154, 1309879), (209, 965174), (266, 758351), (418, 482587), (497, 405878), (781, 258286), (971, 207746), (994, 202939), (1349, 149534), (1463, 137882), (1562, 129143), (1942, 103873), (2698, 74767), (2926, 68941), (5467, 36898), (6797, 29678), (9443, 21362), (10681, 18886), (10934, 18449), (13594, 14839)]