20865784

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{751}}^1$

素因数の和:931

約数の個数: 32

約数和(自身を含む): 41149440

約数和(自身を除く): 20283656

約数列:

[1, 2, 4, 8, 23, 46, 92, 151, 184, 302, 604, 751, 1208, 1502, 3004, 3473, 6008, 6946, 13892, 17273, 27784, 34546, 69092, 113401, 138184, 226802, 453604, 907208, 2608223, 5216446, 10432892, 20865784]

約数ペア:

[(1, 20865784), (2, 10432892), (4, 5216446), (8, 2608223), (23, 907208), (46, 453604), (92, 226802), (151, 138184), (184, 113401), (302, 69092), (604, 34546), (751, 27784), (1208, 17273), (1502, 13892), (3004, 6946), (3473, 6008)]