212887983

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{887}}^1\times {\mathrm{1039}}^1$

素因数の和:1947

約数の個数: 32

約数和(自身を含む): 354631680

約数和(自身を除く): 141743697

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 887, 1039, 2661, 3117, 6209, 7273, 9757, 11429, 18627, 21819, 29271, 34287, 68299, 80003, 204897, 240009, 921593, 2764779, 6451151, 10137523, 19353453, 30412569, 70962661, 212887983]

約数ペア:

[(1, 212887983), (3, 70962661), (7, 30412569), (11, 19353453), (21, 10137523), (33, 6451151), (77, 2764779), (231, 921593), (887, 240009), (1039, 204897), (2661, 80003), (3117, 68299), (6209, 34287), (7273, 29271), (9757, 21819), (11429, 18627)]