19871558

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^2\times {\mathrm{211}}^1$

素因数の和:289

約数の個数: 36

約数和(自身を含む): 35998236

約数和(自身を除く): 16126678

約数列:

[1, 2, 7, 14, 31, 49, 62, 98, 211, 217, 422, 434, 961, 1477, 1519, 1922, 2954, 3038, 6541, 6727, 10339, 13082, 13454, 20678, 45787, 47089, 91574, 94178, 202771, 320509, 405542, 641018, 1419397, 2838794, 9935779, 19871558]

約数ペア:

[(1, 19871558), (2, 9935779), (7, 2838794), (14, 1419397), (31, 641018), (49, 405542), (62, 320509), (98, 202771), (211, 94178), (217, 91574), (422, 47089), (434, 45787), (961, 20678), (1477, 13454), (1519, 13082), (1922, 10339), (2954, 6727), (3038, 6541)]