19970132

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{661}}^1$

素因数の和:768

約数の個数: 48

約数和(自身を含む): 43596672

約数和(自身を除く): 23626540

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 83, 91, 166, 182, 332, 364, 581, 661, 1079, 1162, 1322, 2158, 2324, 2644, 4316, 4627, 7553, 8593, 9254, 15106, 17186, 18508, 30212, 34372, 54863, 60151, 109726, 120302, 219452, 240604, 384041, 713219, 768082, 1426438, 1536164, 2852876, 4992533, 9985066, 19970132]

約数ペア:

[(1, 19970132), (2, 9985066), (4, 4992533), (7, 2852876), (13, 1536164), (14, 1426438), (26, 768082), (28, 713219), (52, 384041), (83, 240604), (91, 219452), (166, 120302), (182, 109726), (332, 60151), (364, 54863), (581, 34372), (661, 30212), (1079, 18508), (1162, 17186), (1322, 15106), (2158, 9254), (2324, 8593), (2644, 7553), (4316, 4627)]