21000611517

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1103}}^1\times {\mathrm{8147}}^1$

素因数の和:9313

約数の個数: 32

約数和(自身を含む): 30224517120

約数和(自身を除く): 9223905603

約数列:

[1, 3, 19, 41, 57, 123, 779, 1103, 2337, 3309, 8147, 20957, 24441, 45223, 62871, 135669, 154793, 334027, 464379, 859237, 1002081, 2577711, 6346513, 8986141, 19039539, 26958423, 170736679, 368431781, 512210037, 1105295343, 7000203839, 21000611517]

約数ペア:

[(1, 21000611517), (3, 7000203839), (19, 1105295343), (41, 512210037), (57, 368431781), (123, 170736679), (779, 26958423), (1103, 19039539), (2337, 8986141), (3309, 6346513), (8147, 2577711), (20957, 1002081), (24441, 859237), (45223, 464379), (62871, 334027), (135669, 154793)]