21031702

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:244

約数の個数: 32

約数和(自身を含む): 33997824

約数和(自身を除く): 12966122

約数列:

[1, 2, 31, 61, 62, 67, 83, 122, 134, 166, 1891, 2077, 2573, 3782, 4087, 4154, 5063, 5146, 5561, 8174, 10126, 11122, 126697, 156953, 172391, 253394, 313906, 339221, 344782, 678442, 10515851, 21031702]

約数ペア:

[(1, 21031702), (2, 10515851), (31, 678442), (61, 344782), (62, 339221), (67, 313906), (83, 253394), (122, 172391), (134, 156953), (166, 126697), (1891, 11122), (2077, 10126), (2573, 8174), (3782, 5561), (4087, 5146), (4154, 5063)]