21308814

素因数分解:

$2^1\times 3^2\times {\mathrm{67}}^1\times {\mathrm{17669}}^1$

素因数の和:17744

約数の個数: 24

約数和(自身を含む): 46860840

約数和(自身を除く): 25552026

約数列:

[1, 2, 3, 6, 9, 18, 67, 134, 201, 402, 603, 1206, 17669, 35338, 53007, 106014, 159021, 318042, 1183823, 2367646, 3551469, 7102938, 10654407, 21308814]

約数ペア:

[(1, 21308814), (2, 10654407), (3, 7102938), (6, 3551469), (9, 2367646), (18, 1183823), (67, 318042), (134, 159021), (201, 106014), (402, 53007), (603, 35338), (1206, 17669)]