211722

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{71}}^2$

素因数の和:154

約数の個数: 24

約数和(自身を含む): 490848

約数和(自身を除く): 279126

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 71, 142, 213, 426, 497, 994, 1491, 2982, 5041, 10082, 15123, 30246, 35287, 70574, 105861, 211722]

約数ペア:

[(1, 211722), (2, 105861), (3, 70574), (6, 35287), (7, 30246), (14, 15123), (21, 10082), (42, 5041), (71, 2982), (142, 1491), (213, 994), (426, 497)]