12787964

素因数分解:

$2^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2909}}^1$

素因数の和:3077

約数の個数: 24

約数和(自身を含む): 25747680

約数和(自身を除く): 12959716

約数列:

[1, 2, 4, 7, 14, 28, 157, 314, 628, 1099, 2198, 2909, 4396, 5818, 11636, 20363, 40726, 81452, 456713, 913426, 1826852, 3196991, 6393982, 12787964]

約数ペア:

[(1, 12787964), (2, 6393982), (4, 3196991), (7, 1826852), (14, 913426), (28, 456713), (157, 81452), (314, 40726), (628, 20363), (1099, 11636), (2198, 5818), (2909, 4396)]