217080654

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{72797}}^1$

素因数の和:72880

約数の個数: 32

約数和(自身を含む): 503179776

約数和(自身を除く): 286099122

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 71, 142, 213, 426, 497, 994, 1491, 2982, 72797, 145594, 218391, 436782, 509579, 1019158, 1528737, 3057474, 5168587, 10337174, 15505761, 31011522, 36180109, 72360218, 108540327, 217080654]

約数ペア:

[(1, 217080654), (2, 108540327), (3, 72360218), (6, 36180109), (7, 31011522), (14, 15505761), (21, 10337174), (42, 5168587), (71, 3057474), (142, 1528737), (213, 1019158), (426, 509579), (497, 436782), (994, 218391), (1491, 145594), (2982, 72797)]