12945904

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{5821}}^1$

素因数の和:5968

約数の個数: 20

約数和(自身を含む): 25267480

約数和(自身を除く): 12321576

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 5821, 11642, 23284, 46568, 93136, 809119, 1618238, 3236476, 6472952, 12945904]

約数ペア:

[(1, 12945904), (2, 6472952), (4, 3236476), (8, 1618238), (16, 809119), (139, 93136), (278, 46568), (556, 23284), (1112, 11642), (2224, 5821)]