211720218

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{9887}}^1$

素因数の和:10018

約数の個数: 32

約数和(自身を含む): 438552576

約数和(自身を除く): 226832358

約数列:

[1, 2, 3, 6, 43, 83, 86, 129, 166, 249, 258, 498, 3569, 7138, 9887, 10707, 19774, 21414, 29661, 59322, 425141, 820621, 850282, 1275423, 1641242, 2461863, 2550846, 4923726, 35286703, 70573406, 105860109, 211720218]

約数ペア:

[(1, 211720218), (2, 105860109), (3, 70573406), (6, 35286703), (43, 4923726), (83, 2550846), (86, 2461863), (129, 1641242), (166, 1275423), (249, 850282), (258, 820621), (498, 425141), (3569, 59322), (7138, 29661), (9887, 21414), (10707, 19774)]