1815693820857

素因数分解:

$3^4\times 7^1\times {\mathrm{3202281871}}^1$

素因数の和:3202281890

約数の個数: 20

約数和(自身を含む): 3099808852096

約数和(自身を除く): 1284115031239

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 3202281871, 9606845613, 22415973097, 28820536839, 67247919291, 86461610517, 201743757873, 259384831551, 605231273619, 1815693820857]

約数ペア:

[(1, 1815693820857), (3, 605231273619), (7, 259384831551), (9, 201743757873), (21, 86461610517), (27, 67247919291), (63, 28820536839), (81, 22415973097), (189, 9606845613), (567, 3202281871)]