20539162

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{409}}^1$

素因数の和:646

約数の個数: 32

約数和(自身を含む): 37549440

約数和(自身を除く): 17010278

約数列:

[1, 2, 7, 14, 17, 34, 119, 211, 238, 409, 422, 818, 1477, 2863, 2954, 3587, 5726, 6953, 7174, 13906, 25109, 48671, 50218, 86299, 97342, 172598, 604093, 1208186, 1467083, 2934166, 10269581, 20539162]

約数ペア:

[(1, 20539162), (2, 10269581), (7, 2934166), (14, 1467083), (17, 1208186), (34, 604093), (119, 172598), (211, 97342), (238, 86299), (409, 50218), (422, 48671), (818, 25109), (1477, 13906), (2863, 7174), (2954, 6953), (3587, 5726)]