21115854

素因数分解:

$2^1\times 3^2\times {\mathrm{67}}^1\times {\mathrm{17509}}^1$

素因数の和:17584

約数の個数: 24

約数和(自身を含む): 46436520

約数和(自身を除く): 25320666

約数列:

[1, 2, 3, 6, 9, 18, 67, 134, 201, 402, 603, 1206, 17509, 35018, 52527, 105054, 157581, 315162, 1173103, 2346206, 3519309, 7038618, 10557927, 21115854]

約数ペア:

[(1, 21115854), (2, 10557927), (3, 7038618), (6, 3519309), (9, 2346206), (18, 1173103), (67, 315162), (134, 157581), (201, 105054), (402, 52527), (603, 35018), (1206, 17509)]