2820635139

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{172421}}^1$

素因数の和:172491

約数の個数: 32

約数和(自身を含む): 4634703360

約数和(自身を除く): 1814068221

約数列:

[1, 3, 7, 19, 21, 41, 57, 123, 133, 287, 399, 779, 861, 2337, 5453, 16359, 172421, 517263, 1206947, 3275999, 3620841, 7069261, 9827997, 21207783, 22931993, 49484827, 68795979, 134315959, 148454481, 402947877, 940211713, 2820635139]

約数ペア:

[(1, 2820635139), (3, 940211713), (7, 402947877), (19, 148454481), (21, 134315959), (41, 68795979), (57, 49484827), (123, 22931993), (133, 21207783), (287, 9827997), (399, 7069261), (779, 3620841), (861, 3275999), (2337, 1206947), (5453, 517263), (16359, 172421)]