20199311979

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{967}}^1\times {\mathrm{2917}}^1$

素因数の和:3936

約数の個数: 64

約数和(自身を含む): 34708979712

約数和(自身を除く): 14509667733

約数列:

[1, 3, 7, 11, 21, 31, 33, 77, 93, 217, 231, 341, 651, 967, 1023, 2387, 2901, 2917, 6769, 7161, 8751, 10637, 20307, 20419, 29977, 31911, 32087, 61257, 74459, 89931, 90427, 96261, 209839, 223377, 224609, 271281, 329747, 629517, 632989, 673827, 989241, 994697, 1898967, 2308229, 2820739, 2984091, 6924687, 6962879, 8462217, 19745173, 20888637, 31028129, 59235519, 87442909, 93084387, 217196903, 262328727, 612100363, 651590709, 961871999, 1836301089, 2885615997, 6733103993, 20199311979]

約数ペア:

[(1, 20199311979), (3, 6733103993), (7, 2885615997), (11, 1836301089), (21, 961871999), (31, 651590709), (33, 612100363), (77, 262328727), (93, 217196903), (217, 93084387), (231, 87442909), (341, 59235519), (651, 31028129), (967, 20888637), (1023, 19745173), (2387, 8462217), (2901, 6962879), (2917, 6924687), (6769, 2984091), (7161, 2820739), (8751, 2308229), (10637, 1898967), (20307, 994697), (20419, 989241), (29977, 673827), (31911, 632989), (32087, 629517), (61257, 329747), (74459, 271281), (89931, 224609), (90427, 223377), (96261, 209839)]