218538513

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{9907}}^1$

素因数の和:9978

約数の個数: 32

約数和(自身を含む): 348761600

約数和(自身を除く): 130223087

約数列:

[1, 3, 9, 19, 27, 43, 57, 129, 171, 387, 513, 817, 1161, 2451, 7353, 9907, 22059, 29721, 89163, 188233, 267489, 426001, 564699, 1278003, 1694097, 3834009, 5082291, 8094019, 11502027, 24282057, 72846171, 218538513]

約数ペア:

[(1, 218538513), (3, 72846171), (9, 24282057), (19, 11502027), (27, 8094019), (43, 5082291), (57, 3834009), (129, 1694097), (171, 1278003), (387, 564699), (513, 426001), (817, 267489), (1161, 188233), (2451, 89163), (7353, 29721), (9907, 22059)]