20897514

素因数分解:

$2^1\times 3^6\times {\mathrm{11}}^1\times {\mathrm{1303}}^1$

素因数の和:1334

約数の個数: 56

約数和(自身を含む): 51309792

約数和(自身を除く): 30412278

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 81, 99, 162, 198, 243, 297, 486, 594, 729, 891, 1303, 1458, 1782, 2606, 2673, 3909, 5346, 7818, 8019, 11727, 14333, 16038, 23454, 28666, 35181, 42999, 70362, 85998, 105543, 128997, 211086, 257994, 316629, 386991, 633258, 773982, 949887, 1160973, 1899774, 2321946, 3482919, 6965838, 10448757, 20897514]

約数ペア:

[(1, 20897514), (2, 10448757), (3, 6965838), (6, 3482919), (9, 2321946), (11, 1899774), (18, 1160973), (22, 949887), (27, 773982), (33, 633258), (54, 386991), (66, 316629), (81, 257994), (99, 211086), (162, 128997), (198, 105543), (243, 85998), (297, 70362), (486, 42999), (594, 35181), (729, 28666), (891, 23454), (1303, 16038), (1458, 14333), (1782, 11727), (2606, 8019), (2673, 7818), (3909, 5346)]