21493514

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{349}}^1$

素因数の和:494

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 16608886

約数列:

[1, 2, 7, 14, 53, 83, 106, 166, 349, 371, 581, 698, 742, 1162, 2443, 4399, 4886, 8798, 18497, 28967, 30793, 36994, 57934, 61586, 129479, 202769, 258958, 405538, 1535251, 3070502, 10746757, 21493514]

約数ペア:

[(1, 21493514), (2, 10746757), (7, 3070502), (14, 1535251), (53, 405538), (83, 258958), (106, 202769), (166, 129479), (349, 61586), (371, 57934), (581, 36994), (698, 30793), (742, 28967), (1162, 18497), (2443, 8798), (4399, 4886)]