21855070

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{22531}}^1$

素因数の和:22635

約数の個数: 16

約数和(自身を含む): 39746448

約数和(自身を除く): 17891378

約数列:

[1, 2, 5, 10, 97, 194, 485, 970, 22531, 45062, 112655, 225310, 2185507, 4371014, 10927535, 21855070]

約数ペア:

[(1, 21855070), (2, 10927535), (5, 4371014), (10, 2185507), (97, 225310), (194, 112655), (485, 45062), (970, 22531)]