128404479

素因数分解:

$3^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{9539}}^1$

素因数の和:10190

約数の個数: 16

約数和(自身を含む): 195989760

約数和(自身を除く): 67585281

約数列:

[1, 3, 7, 21, 641, 1923, 4487, 9539, 13461, 28617, 66773, 200319, 6114499, 18343497, 42801493, 128404479]

約数ペア:

[(1, 128404479), (3, 42801493), (7, 18343497), (21, 6114499), (641, 200319), (1923, 66773), (4487, 28617), (9539, 13461)]