217620284

素因数分解:

$2^2\times 7^1\times {\mathrm{379}}^1\times {\mathrm{20507}}^1$

素因数の和:20897

約数の個数: 24

約数和(自身を含む): 436410240

約数和(自身を除く): 218789956

約数列:

[1, 2, 4, 7, 14, 28, 379, 758, 1516, 2653, 5306, 10612, 20507, 41014, 82028, 143549, 287098, 574196, 7772153, 15544306, 31088612, 54405071, 108810142, 217620284]

約数ペア:

[(1, 217620284), (2, 108810142), (4, 54405071), (7, 31088612), (14, 15544306), (28, 7772153), (379, 574196), (758, 287098), (1516, 143549), (2653, 82028), (5306, 41014), (10612, 20507)]