2648331

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:471

約数の個数: 24

約数和(自身を含む): 4419584

約数和(自身を除く): 1771253

約数列:

[1, 3, 7, 9, 21, 63, 127, 331, 381, 889, 993, 1143, 2317, 2667, 2979, 6951, 8001, 20853, 42037, 126111, 294259, 378333, 882777, 2648331]

約数ペア:

[(1, 2648331), (3, 882777), (7, 378333), (9, 294259), (21, 126111), (63, 42037), (127, 20853), (331, 8001), (381, 6951), (889, 2979), (993, 2667), (1143, 2317)]