20989052

素因数分解:

$2^2\times 7^2\times {\mathrm{173}}^1\times {\mathrm{619}}^1$

素因数の和:810

約数の個数: 36

約数和(自身を含む): 43044120

約数和(自身を除く): 22055068

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 173, 196, 346, 619, 692, 1211, 1238, 2422, 2476, 4333, 4844, 8477, 8666, 16954, 17332, 30331, 33908, 60662, 107087, 121324, 214174, 428348, 749609, 1499218, 2998436, 5247263, 10494526, 20989052]

約数ペア:

[(1, 20989052), (2, 10494526), (4, 5247263), (7, 2998436), (14, 1499218), (28, 749609), (49, 428348), (98, 214174), (173, 121324), (196, 107087), (346, 60662), (619, 33908), (692, 30331), (1211, 17332), (1238, 16954), (2422, 8666), (2476, 8477), (4333, 4844)]